Abstract group 1728.30448: $C_{18}\times \GL(2,\mathbb{Z}/4)$

• Label: 1728.30448
• Order: \( 2^{6} \cdot 3^{3} \)
• Exponent: \( 2^{2} \cdot 3^{2} \)
• Nilpotent: no
• Solvable: yes
• $\card{G^{\mathrm{ab}}}$: \( 2^{3} \cdot 3^{2} \)
• $\card{Z(G)}$: \( 2^{2} \cdot 3^{2} \)
• $\card{\Aut(G)}$: \( 2^{9} \cdot 3^{2} \)
• $\card{\mathrm{Out}(G)}$: \( 2^{5} \cdot 3 \)
• Perm deg.: $19$
• Trans deg.: $216$
• Rank: $3$

Group information

Description:	$C_{18}\times \GL(2,\mathbb{Z}/4)$
Order:	\(1728\)\(\medspace = 2^{6} \cdot 3^{3} \)
Exponent:	\(36\)\(\medspace = 2^{2} \cdot 3^{2} \)
Automorphism group:	$(C_2\times C_6\times S_4).C_2^4$, of order \(4608\)\(\medspace = 2^{9} \cdot 3^{2} \)
Composition factors:	$C_2$ x 6, $C_3$ x 3
Derived length:	$3$

This group is nonabelian and monomial (hence solvable).

Group statistics

Order	1	2	3	4	6	9	12	18	36
Elements	1	55	26	72	278	54	144	666	432	1728
Conjugacy classes	1	13	5	6	47	12	12	120	36	252
Divisions	1	13	3	6	25	2	6	20	6	82
Autjugacy classes	1	8	3	3	14	2	3	11	3	48

Dimension	1	2	3	4	6	12	18	36
Irr. complex chars.	72	90	72	0	18	0	0	0	252
Irr. rational chars.	8	14	8	12	18	12	8	2	82

Minimal presentations

Permutation degree:	$19$
Transitive degree:	$216$
Rank:	$3$
Inequivalent generating triples:	$294840$

Minimal degrees of faithful linear representations

	Over $\mathbb{C}$	Over $\mathbb{R}$	Over $\mathbb{Q}$
Irreducible	none	none	none
Arbitrary	5	7	11

Constructions

Presentation:	${\langle a, b, c, d, e \mid a^{2}=b^{4}=c^{6}=d^{2}=e^{18}=[a,c]=[a,d]=[a,e]= \!\cdots\! \rangle}$
Permutation group:	Degree $19$ $\langle(10,11)(12,13)(14,15)(16,18)(17,19), (14,15)(16,17)(18,19), (11,13), (1,2,4,3,5,7,6,8,9) \!\cdots\! \rangle$
Matrix group:	$\left\langle \left(\begin{array}{rr} 1 & 12 \\ 0 & 1 \end{array}\right), \left(\begin{array}{rr} 17 & 0 \\ 0 & 17 \end{array}\right), \left(\begin{array}{rr} 1 & 18 \\ 0 & 1 \end{array}\right), \left(\begin{array}{rr} 17 & 18 \\ 18 & 35 \end{array}\right), \left(\begin{array}{rr} 35 & 18 \\ 18 & 17 \end{array}\right), \left(\begin{array}{rr} 1 & 27 \\ 27 & 10 \end{array}\right), \left(\begin{array}{rr} 1 & 4 \\ 0 & 1 \end{array}\right), \left(\begin{array}{rr} 1 & 18 \\ 18 & 1 \end{array}\right), \left(\begin{array}{rr} 1 & 9 \\ 0 & 1 \end{array}\right) \right\rangle \subseteq \GL_{2}(\Z/36\Z)$
Direct product:	$C_2$ $\, \times\, $ $C_9$ $\, \times\, $ $\GL(2,\mathbb{Z}/4)$
Semidirect product:	$(A_4\times C_{18})$ $\,\rtimes\,$ $D_4$ (2)	$A_4$ $\,\rtimes\,$ $(D_4\times C_{18})$	$C_2^5$ $\,\rtimes\,$ $(S_3\times C_9)$	$C_2^3$ $\,\rtimes\,$ $(C_9\times S_4)$	all 28
Trans. wreath product:	not isomorphic to a non-trivial transitive wreath product
Non-split product:	$C_{18}$ . $(C_2^2\times S_4)$	$C_2^4$ . $(S_3\times C_{18})$	$C_2^2$ . $(C_{18}\times S_4)$	$(A_4\times C_{18})$ . $C_2^3$	all 33
Aut. group:	$\Aut(C_4\times C_{76})$	$\Aut(C_4\times C_{108})$

Elements of the group are displayed as matrices in $\GL_{2}(\Z/{36}\Z)$.

Homology

Abelianization:	$C_{2}^{2} \times C_{18} \simeq C_{2}^{3} \times C_{9}$
Schur multiplier:	$C_{2}^{4}$
Commutator length:	$1$

Subgroups

There are 3722 subgroups in 877 conjugacy classes, 105 normal (45 characteristic).

Characteristic subgroups are shown in this color. Normal (but not characteristic) subgroups are shown in this color.

Special subgroups

Center:	$Z \simeq$ $C_2\times C_{18}$	$G/Z \simeq$ $C_2\times S_4$
Commutator:	$G' \simeq$ $C_2\times A_4$	$G/G' \simeq$ $C_2^2\times C_{18}$
Frattini:	$\Phi \simeq$ $C_6$	$G/\Phi \simeq$ $C_2\times C_6\times S_4$
Fitting:	$\operatorname{Fit} \simeq$ $C_2^4\times C_{18}$	$G/\operatorname{Fit} \simeq$ $S_3$
Radical:	$R \simeq$ $C_{18}\times \GL(2,\mathbb{Z}/4)$	$G/R \simeq$ $C_1$
Socle:	$\operatorname{soc} \simeq$ $C_2^3\times C_6$	$G/\operatorname{soc} \simeq$ $C_6\times S_3$
2-Sylow subgroup:	$P_{ 2 } \simeq$ $C_2^3:D_4$
3-Sylow subgroup:	$P_{ 3 } \simeq$ $C_3\times C_9$

Hi

Subgroup diagram and profile

Classes of subgroups up to conjugation

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Classes of subgroups up to automorphism

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Normal subgroups

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Normal subgroups up to automorphism

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Classes of subgroups up to conjugation

Order 1728: $C_{18}\times \GL(2,\mathbb{Z}/4)$

Order 864: $C_9\times \GL(2,\mathbb{Z}/4)$ x 4, $C_2^2\times A_4\times C_{18}$, $C_2\times C_{18}\times S_4$, $C_2\times A_4:C_{36}$

Order 576: $C_6\times \GL(2,\mathbb{Z}/4)$, $C_2^5:C_{18}$

Order 432: $C_2\times A_4\times C_{18}$ x 5, $C_{18}\times S_4$ x 4, $A_4:C_{36}$ x 2, $C_2\times D_6:C_{18}$

Order 288: $C_2^4:C_{18}$ x 8, $C_3\times \GL(2,\mathbb{Z}/4)$ x 4, $C_2^4:C_{18}$ x 3, $C_2^3:C_{36}$ x 3, $C_2\times A_4:C_{12}$, $C_2^4\times C_{18}$, $C_2^4:C_{18}$, $C_2^3:C_6^2$, $C_2\times C_6\times S_4$

Order 216: $A_4\times C_{18}$ x 5, $D_6:C_{18}$ x 4, $C_9\times S_4$ x 2, $C_6:C_{36}$, $C_2\times C_6\times C_{18}$, $D_6\times C_{18}$

Order 192: $C_2\times \GL(2,\mathbb{Z}/4)$, $C_2^5:C_6$

Order 144: $D_4\times C_{18}$ x 24, $C_2^2:C_{36}$ x 12, $C_2^3\times C_{18}$ x 12, $C_2^3:C_{18}$ x 7, $C_2^2:C_6^2$ x 5, $C_6\times S_4$ x 4, $C_2^2\times C_{36}$ x 3, $A_4:C_{12}$ x 2, $C_6^2:C_2^2$

Order 108: $C_6\times C_{18}$ x 5, $S_3\times C_{18}$ x 4, $C_3:C_{36}$ x 2, $C_9\times A_4$

Order 96: $C_2^4:C_6$ x 8, $\GL(2,\mathbb{Z}/4)$ x 4, $C_{12}:C_2^3$ x 3, $C_2^3:C_{12}$ x 3, $C_2^3\times A_4$ x 2, $C_2^4\times C_6$, $C_2^2\times S_4$, $C_2^2.S_4$

Order 72: $C_2^2\times C_{18}$ x 47, $D_4\times C_9$ x 24, $C_2\times C_{36}$ x 12, $C_2^2:C_{18}$ x 7, $C_6\times A_4$ x 5, $C_6\wr C_2$ x 4, $C_3\times S_4$ x 2, $C_2\times C_6^2$, $C_6\times D_6$, $C_6:C_{12}$

Order 64: $C_2^3:D_4$

Order 54: $C_3\times C_{18}$ x 5, $S_3\times C_9$ x 2

Order 48: $C_6\times D_4$ x 24, $C_2^3\times C_6$ x 12, $C_2^2\times A_4$ x 12, $C_2^2:C_{12}$ x 12, $C_2\times S_4$ x 4, $C_2^2\times C_{12}$ x 3, $A_4:C_4$ x 2, $C_6:D_4$

Order 36: $C_2\times C_{18}$ x 55, $C_{36}$ x 6, $C_6^2$ x 5, $C_6\times S_3$ x 4, $C_3:C_{12}$ x 2, $C_2^2:C_9$, $C_3\times A_4$

Order 32: $C_2^2\wr C_2$ x 8, $C_2^2\times D_4$ x 3, $C_2^3:C_4$ x 3, $C_2^5$

Order 27: $C_3\times C_9$

Order 24: $C_2^2\times C_6$ x 48, $C_3\times D_4$ x 24, $C_2\times C_{12}$ x 12, $C_2\times A_4$ x 12, $C_3:D_4$ x 4, $S_4$ x 2, $C_6:C_4$, $C_2\times D_6$

Order 18: $C_{18}$ x 20, $C_3\times C_6$ x 5, $C_3\times S_3$ x 2

Order 16: $C_2\times D_4$ x 24, $C_2^2:C_4$ x 12, $C_2^4$ x 12, $C_2^2\times C_4$ x 3

Order 12: $C_2\times C_6$ x 60, $C_{12}$ x 6, $D_6$ x 4, $A_4$ x 2, $C_3:C_4$ x 2

Order 9: $C_9$ x 2, $C_3^2$

Order 8: $C_2^3$ x 46, $D_4$ x 24, $C_2\times C_4$ x 12

Order 6: $C_6$ x 25, $S_3$ x 2

Order 4: $C_2^2$ x 48, $C_4$ x 6

Order 3: $C_3$ x 3

Order 2: $C_2$ x 13

Order 1: $C_1$

Classes of subgroups up to automorphism

Order 1728: $C_{18}\times \GL(2,\mathbb{Z}/4)$

Order 864: $C_2^2\times A_4\times C_{18}$, $C_2\times C_{18}\times S_4$, $C_9\times \GL(2,\mathbb{Z}/4)$, $C_2\times A_4:C_{36}$

Order 576: $C_6\times \GL(2,\mathbb{Z}/4)$, $C_2^5:C_{18}$

Order 432: $C_2\times A_4\times C_{18}$ x 3, $C_{18}\times S_4$ x 2, $C_2\times D_6:C_{18}$, $A_4:C_{36}$

Order 288: $C_2^4:C_{18}$ x 3, $C_2^3:C_{36}$ x 3, $C_2^4:C_{18}$ x 2, $C_3\times \GL(2,\mathbb{Z}/4)$, $C_2\times A_4:C_{12}$, $C_2^4\times C_{18}$, $C_2^4:C_{18}$, $C_2^3:C_6^2$, $C_2\times C_6\times S_4$

Order 216: $A_4\times C_{18}$ x 3, $C_9\times S_4$, $D_6:C_{18}$, $C_6:C_{36}$, $C_2\times C_6\times C_{18}$, $D_6\times C_{18}$

Order 192: $C_2\times \GL(2,\mathbb{Z}/4)$, $C_2^5:C_6$

Order 144: $D_4\times C_{18}$ x 10, $C_2^3\times C_{18}$ x 8, $C_2^2:C_{36}$ x 4, $C_2^2\times C_{36}$ x 3, $C_2^2:C_6^2$ x 3, $C_2^3:C_{18}$ x 3, $C_6\times S_4$ x 2, $C_6^2:C_2^2$, $A_4:C_{12}$

Order 108: $C_6\times C_{18}$ x 3, $S_3\times C_{18}$ x 2, $C_3:C_{36}$, $C_9\times A_4$

Order 96: $C_{12}:C_2^3$ x 3, $C_2^3:C_{12}$ x 3, $C_2^3\times A_4$ x 2, $C_2^4:C_6$ x 2, $C_2^4\times C_6$, $C_2^2\times S_4$, $\GL(2,\mathbb{Z}/4)$, $C_2^2.S_4$

Order 72: $C_2^2\times C_{18}$ x 25, $C_2\times C_{36}$ x 7, $D_4\times C_9$ x 6, $C_6\times A_4$ x 3, $C_2^2:C_{18}$ x 3, $C_2\times C_6^2$, $C_6\times D_6$, $C_3\times S_4$, $C_6\wr C_2$, $C_6:C_{12}$

Order 64: $C_2^3:D_4$

Order 54: $C_3\times C_{18}$ x 3, $S_3\times C_9$

Order 48: $C_6\times D_4$ x 10, $C_2^3\times C_6$ x 8, $C_2^2\times A_4$ x 6, $C_2^2:C_{12}$ x 4, $C_2^2\times C_{12}$ x 3, $C_2\times S_4$ x 2, $C_6:D_4$, $A_4:C_4$

Order 36: $C_2\times C_{18}$ x 27, $C_{36}$ x 3, $C_6^2$ x 3, $C_6\times S_3$ x 2, $C_3:C_{12}$, $C_2^2:C_9$, $C_3\times A_4$

Order 32: $C_2^2\times D_4$ x 3, $C_2^3:C_4$ x 3, $C_2^2\wr C_2$ x 2, $C_2^5$

Order 27: $C_3\times C_9$

Order 24: $C_2^2\times C_6$ x 26, $C_2\times C_{12}$ x 7, $C_2\times A_4$ x 6, $C_3\times D_4$ x 6, $C_3:D_4$, $C_6:C_4$, $C_2\times D_6$, $S_4$

Order 18: $C_{18}$ x 11, $C_3\times C_6$ x 3, $C_3\times S_3$

Order 16: $C_2\times D_4$ x 10, $C_2^4$ x 8, $C_2^2:C_4$ x 4, $C_2^2\times C_4$ x 3

Order 12: $C_2\times C_6$ x 30, $C_{12}$ x 3, $D_6$ x 2, $A_4$ x 2, $C_3:C_4$

Order 9: $C_9$ x 2, $C_3^2$

Order 8: $C_2^3$ x 24, $C_2\times C_4$ x 7, $D_4$ x 6

Order 6: $C_6$ x 14, $S_3$

Order 4: $C_2^2$ x 24, $C_4$ x 3

Order 3: $C_3$ x 3

Order 2: $C_2$ x 8

Order 1: $C_1$

Normal subgroups (quotient in parentheses)

Order 1728: $C_{18}\times \GL(2,\mathbb{Z}/4)$ ($C_1$)

Order 864: $C_9\times \GL(2,\mathbb{Z}/4)$ ($C_2$) x 4, $C_2^2\times A_4\times C_{18}$ ($C_2$), $C_2\times C_{18}\times S_4$ ($C_2$), $C_2\times A_4:C_{36}$ ($C_2$)

Order 576: $C_6\times \GL(2,\mathbb{Z}/4)$ ($C_3$)

Order 432: $C_2\times A_4\times C_{18}$ ($C_2^2$) x 3, $C_{18}\times S_4$ ($C_2^2$) x 2, $A_4:C_{36}$ ($C_2^2$) x 2

Order 288: $C_3\times \GL(2,\mathbb{Z}/4)$ ($C_6$) x 4, $C_2\times A_4:C_{12}$ ($C_6$), $C_2^4\times C_{18}$ ($S_3$), $C_2^3:C_6^2$ ($C_6$), $C_2\times C_6\times S_4$ ($C_6$)

Order 216: $A_4\times C_{18}$ ($D_4$) x 2, $A_4\times C_{18}$ ($C_2^3$)

Order 192: $C_2\times \GL(2,\mathbb{Z}/4)$ ($C_9$)

Order 144: $C_2^2:C_6^2$ ($C_2\times C_6$) x 3, $C_2^3\times C_{18}$ ($D_6$) x 3, $C_6\times S_4$ ($C_2\times C_6$) x 2, $A_4:C_{12}$ ($C_2\times C_6$) x 2

Order 108: $C_9\times A_4$ ($C_2\times D_4$)

Order 96: $\GL(2,\mathbb{Z}/4)$ ($C_{18}$) x 4, $C_2^4\times C_6$ ($C_3\times S_3$), $C_2^3\times A_4$ ($C_{18}$), $C_2^2\times S_4$ ($C_{18}$), $C_2^2.S_4$ ($C_{18}$)

Order 72: $C_6\times A_4$ ($C_3\times D_4$) x 2, $C_2^2\times C_{18}$ ($C_3:D_4$) x 2, $C_6\times A_4$ ($C_2^2\times C_6$), $C_2^2\times C_{18}$ ($C_2\times D_6$), $C_2^2\times C_{18}$ ($S_4$)

Order 48: $C_2^3\times C_6$ ($C_6\times S_3$) x 3, $C_2^2\times A_4$ ($C_2\times C_{18}$) x 3, $C_2\times S_4$ ($C_2\times C_{18}$) x 2, $A_4:C_4$ ($C_2\times C_{18}$) x 2

Order 36: $C_2\times C_{18}$ ($C_2\times S_4$) x 3, $C_2\times C_{18}$ ($C_6:D_4$), $C_3\times A_4$ ($C_6\times D_4$)

Order 32: $C_2^5$ ($S_3\times C_9$)

Order 24: $C_2^2\times C_6$ ($C_6\wr C_2$) x 2, $C_2\times A_4$ ($D_4\times C_9$) x 2, $C_2^2\times C_6$ ($C_6\times D_6$), $C_2^2\times C_6$ ($C_3\times S_4$), $C_2\times A_4$ ($C_2^2\times C_{18}$)

Order 18: $C_{18}$ ($\GL(2,\mathbb{Z}/4)$) x 2, $C_{18}$ ($C_2^2\times S_4$)

Order 16: $C_2^4$ ($S_3\times C_{18}$) x 3

Order 12: $C_2\times C_6$ ($C_6\times S_4$) x 3, $C_2\times C_6$ ($C_6^2:C_2^2$), $A_4$ ($D_4\times C_{18}$)

Order 9: $C_9$ ($C_2\times \GL(2,\mathbb{Z}/4)$)

Order 8: $C_2^3$ ($D_6:C_{18}$) x 2, $C_2^3$ ($C_9\times S_4$), $C_2^3$ ($D_6\times C_{18}$)

Order 6: $C_6$ ($C_3\times \GL(2,\mathbb{Z}/4)$) x 2, $C_6$ ($C_2\times C_6\times S_4$)

Order 4: $C_2^2$ ($C_{18}\times S_4$) x 3, $C_2^2$ ($C_2\times D_6:C_{18}$)

Order 3: $C_3$ ($C_6\times \GL(2,\mathbb{Z}/4)$)

Order 2: $C_2$ ($C_9\times \GL(2,\mathbb{Z}/4)$) x 2, $C_2$ ($C_2\times C_{18}\times S_4$)

Order 1: $C_1$ ($C_{18}\times \GL(2,\mathbb{Z}/4)$)

Normal subgroups up to automorphism (quotient in parentheses)

Order 1728: $C_{18}\times \GL(2,\mathbb{Z}/4)$ ($C_1$)

Order 864: $C_2^2\times A_4\times C_{18}$ ($C_2$), $C_2\times C_{18}\times S_4$ ($C_2$), $C_9\times \GL(2,\mathbb{Z}/4)$ ($C_2$), $C_2\times A_4:C_{36}$ ($C_2$)

Order 576: $C_6\times \GL(2,\mathbb{Z}/4)$ ($C_3$)

Order 432: $C_2\times A_4\times C_{18}$ ($C_2^2$) x 2, $C_{18}\times S_4$ ($C_2^2$), $A_4:C_{36}$ ($C_2^2$)

Order 288: $C_3\times \GL(2,\mathbb{Z}/4)$ ($C_6$), $C_2\times A_4:C_{12}$ ($C_6$), $C_2^4\times C_{18}$ ($S_3$), $C_2^3:C_6^2$ ($C_6$), $C_2\times C_6\times S_4$ ($C_6$)

Order 216: $A_4\times C_{18}$ ($C_2^3$), $A_4\times C_{18}$ ($D_4$)

Order 192: $C_2\times \GL(2,\mathbb{Z}/4)$ ($C_9$)

Order 144: $C_2^2:C_6^2$ ($C_2\times C_6$) x 2, $C_2^3\times C_{18}$ ($D_6$) x 2, $C_6\times S_4$ ($C_2\times C_6$), $A_4:C_{12}$ ($C_2\times C_6$)

Order 108: $C_9\times A_4$ ($C_2\times D_4$)

Order 96: $C_2^4\times C_6$ ($C_3\times S_3$), $C_2^3\times A_4$ ($C_{18}$), $C_2^2\times S_4$ ($C_{18}$), $\GL(2,\mathbb{Z}/4)$ ($C_{18}$), $C_2^2.S_4$ ($C_{18}$)

Order 72: $C_6\times A_4$ ($C_2^2\times C_6$), $C_6\times A_4$ ($C_3\times D_4$), $C_2^2\times C_{18}$ ($C_3:D_4$), $C_2^2\times C_{18}$ ($C_2\times D_6$), $C_2^2\times C_{18}$ ($S_4$)

Order 48: $C_2^3\times C_6$ ($C_6\times S_3$) x 2, $C_2^2\times A_4$ ($C_2\times C_{18}$) x 2, $C_2\times S_4$ ($C_2\times C_{18}$), $A_4:C_4$ ($C_2\times C_{18}$)

Order 36: $C_2\times C_{18}$ ($C_2\times S_4$) x 2, $C_2\times C_{18}$ ($C_6:D_4$), $C_3\times A_4$ ($C_6\times D_4$)

Order 32: $C_2^5$ ($S_3\times C_9$)

Order 24: $C_2^2\times C_6$ ($C_6\times D_6$), $C_2^2\times C_6$ ($C_3\times S_4$), $C_2^2\times C_6$ ($C_6\wr C_2$), $C_2\times A_4$ ($C_2^2\times C_{18}$), $C_2\times A_4$ ($D_4\times C_9$)

Order 18: $C_{18}$ ($C_2^2\times S_4$), $C_{18}$ ($\GL(2,\mathbb{Z}/4)$)

Order 16: $C_2^4$ ($S_3\times C_{18}$) x 2

Order 12: $C_2\times C_6$ ($C_6\times S_4$) x 2, $C_2\times C_6$ ($C_6^2:C_2^2$), $A_4$ ($D_4\times C_{18}$)

Order 9: $C_9$ ($C_2\times \GL(2,\mathbb{Z}/4)$)

Order 8: $C_2^3$ ($C_9\times S_4$), $C_2^3$ ($D_6:C_{18}$), $C_2^3$ ($D_6\times C_{18}$)

Order 6: $C_6$ ($C_3\times \GL(2,\mathbb{Z}/4)$), $C_6$ ($C_2\times C_6\times S_4$)

Order 4: $C_2^2$ ($C_{18}\times S_4$) x 2, $C_2^2$ ($C_2\times D_6:C_{18}$)

Order 3: $C_3$ ($C_6\times \GL(2,\mathbb{Z}/4)$)

Order 2: $C_2$ ($C_2\times C_{18}\times S_4$), $C_2$ ($C_9\times \GL(2,\mathbb{Z}/4)$)

Order 1: $C_1$ ($C_{18}\times \GL(2,\mathbb{Z}/4)$)

Series

Derived series

$C_{18}\times \GL(2,\mathbb{Z}/4)$

$\rhd$

$C_2\times A_4$

$\rhd$

$C_2^2$

$\rhd$

$C_1$

Chief series

$C_{18}\times \GL(2,\mathbb{Z}/4)$

$\rhd$

$C_9\times \GL(2,\mathbb{Z}/4)$

$\rhd$

$C_2\times A_4\times C_{18}$

$\rhd$

$A_4\times C_{18}$

$\rhd$

$C_9\times A_4$

$\rhd$

$C_2\times C_{18}$

$\rhd$

$C_9$

$\rhd$

$C_3$

$\rhd$

$C_1$

Lower central series

$C_{18}\times \GL(2,\mathbb{Z}/4)$

$\rhd$

$C_2\times A_4$

$\rhd$

$A_4$

Upper central series

$C_1$

$\lhd$

$C_2\times C_{18}$

$\lhd$

$C_2^2\times C_{18}$

Character theory

Complex character table

See the $252 \times 252$ character table (warning: may be slow to load). Alternatively, you may search for characters of this group with desired properties.

Rational character table

See the $82 \times 82$ rational character table.