A015165 - OEIS

A015165

Theta series of 17-dimensional lattice Q'_17(6)^{+6}.

1, 0, 0, 0, 0, 0, 0, 0, 102, 136, 0, 1632, 1326, 0, 9792, 8160, 0, 36144, 31552, 0, 122196, 88128, 0, 394944, 240618, 0, 992256, 658784, 0, 1991040, 1452480, 0, 4163742, 2622216, 0, 9238752, 5030028, 0, 17109888, 10390944, 0, 26670144, 18128256, 0, 45317988, 26822464, 0, 84237312, 43527174, 0, 134013312, 77769696, 0, 183149568, 119299200, 0, 276648888, 157895592, 0, 463739328, 232127928, 0, 672628800, 379052672, 0, 845519616, 537564480, 0, 1186603368, 662425536, 0

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OFFSET

0,9

LINKS

Table of n, a(n) for n=0..70.

J. H. Conway and N. J. A. Sloane, Low-Dimensional Lattices II: Subgroups of GL(n,Z), Proc. Royal Soc. London, A 419 (1988), 29-68.

Gheorghe Coserea, Gram matrix.

G. Nebe and N. J. A. Sloane, Home page for this lattice

W. Plesken, Finite Unimodular Groups of Prime Degree and Circulants, J. Algebra, vol. 97 (1985), pp. 286-312.

PROG

(PARI) \\ system("wget https://oeis.org/A015165/a015165.txt");

g = matconcat(read("a015165.txt")~);