Properties

Label 7.729.6.1.1
Class number $1$
Dimension $7$
Determinant $729$
Level $6$

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Lattice Invariants

Dimension:$7$
Determinant:$729$
Level:$6$
Density:$0.0154671947089850554601463665025\dots$
Group order:$46080$
Hermite number:$0.779953875172457924308650483676\dots$
Minimal vector length:$2$
Kissing number:$6$
Normalized minimal vectors: $(1, -1, 0, 0, 0, 0, 0)$, $(1, 0, 0, 0, 0, 0, 0)$, $(0, 1, 0, 0, 0, 0, 0)$
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Theta Series

\(1 \) \(\mathstrut +\mathstrut 6 q^{2} \) \(\mathstrut +\mathstrut 10 q^{3} \) \(\mathstrut +\mathstrut 60 q^{5} \) \(\mathstrut +\mathstrut 46 q^{6} \) \(\mathstrut +\mathstrut 246 q^{8} \) \(\mathstrut +\mathstrut 140 q^{9} \) \(\mathstrut +\mathstrut 540 q^{11} \) \(\mathstrut +\mathstrut 330 q^{12} \) \(\mathstrut +\mathstrut 792 q^{14} \) \(\mathstrut +\mathstrut 592 q^{15} \) \(\mathstrut +\mathstrut 1272 q^{17} \) \(\mathstrut +\mathstrut 786 q^{18} \) \(\mathstrut +\mathstrut 2460 q^{20} \) \(\mathstrut +\mathstrut O(q^{21}) \)

Gram Matrix

$\left(\begin{array}{rrrrrrr} 2 & 1 & 0 & 0 & 0 & 0 & 0 \\ 1 & 2 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 3 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 3 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 & 3 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 3 & 3 \\ 0 & 0 & 0 & 0 & 0 & 3 & 6 \end{array}\right)$

Genus Structure

Genus representatives:
Class number:$1$
 
$\left(\begin{array}{rrrrrrr} 2 & 1 & 0 & 0 & 0 & 0 & 0 \\ 1 & 2 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 3 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 3 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 & 3 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 3 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 3 \end{array}\right)$
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