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Properties

Label 3.202.404.8.6
Class number $8$
Dimension $3$
Determinant $202$
Level $404$

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Lattice Invariants

Dimension:$3$
Determinant:$202$
Level:$404$
Density:$0.104200050893744386754018768547\dots$
Group order:$4$
Hermite number:$0.340862746642059164238446959867\dots$
Minimal vector length:$2$
Kissing number:$2$
Normalized minimal vectors: $(1, 0, 0)$
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Theta Series

\(1 \) \(\mathstrut +\mathstrut 2 q^{2} \) \(\mathstrut +\mathstrut 6 q^{8} \) \(\mathstrut +\mathstrut 4 q^{12} \) \(\mathstrut +\mathstrut 2 q^{14} \) \(\mathstrut +\mathstrut 4 q^{16} \) \(\mathstrut +\mathstrut 6 q^{18} \) \(\mathstrut +\mathstrut 4 q^{20} \) \(\mathstrut +\mathstrut O(q^{21}) \)

Gram Matrix

$\left(\begin{array}{rrr} 2 & 1 & 0 \\ 1 & 8 & 2 \\ 0 & 2 & 14 \end{array}\right)$

Genus Structure

Genus representatives:
Class number:$8$
 
$\left(\begin{array}{rrr} 2 & 1 & 0 \\ 1 & 8 & 2 \\ 0 & 2 & 14 \end{array}\right)$, $\left(\begin{array}{rrr} 2 & 1 & 1 \\ 1 & 8 & 1 \\ 1 & 1 & 14 \end{array}\right)$, $\left(\begin{array}{rrr} 2 & 0 & 1 \\ 0 & 4 & -1 \\ 1 & -1 & 26 \end{array}\right)$, $\left(\begin{array}{rrr} 2 & 0 & -1 \\ 0 & 6 & 2 \\ -1 & 2 & 18 \end{array}\right)$, $\left(\begin{array}{rrr} 2 & -1 & -1 \\ -1 & 2 & 1 \\ -1 & 1 & 68 \end{array}\right)$, $\left(\begin{array}{rrr} 6 & -2 & -2 \\ -2 & 6 & 3 \\ -2 & 3 & 8 \end{array}\right)$, $\left(\begin{array}{rrr} 2 & 1 & -1 \\ 1 & 4 & 1 \\ -1 & 1 & 30 \end{array}\right)$, $\left(\begin{array}{rrr} 2 & 1 & 1 \\ 1 & 6 & 3 \\ 1 & 3 & 20 \end{array}\right)$
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Comments

This lattice appears in the Brandt-Intrau-Schiemann Table of Even Ternary Quadratic Forms.