A005944 Theta series of 18-dimensional lattice associated with Sp_4(4), with det 1024 and minimal norm 4.

1, 0, 3060, 77760, 774180, 4621824, 19873920, 68181120, 198425700, 509271040, 1183095144, 2535128640, 5085536640, 9652170240, 17458087680, 30306142080, 50807986020, 82540293120, 130341238900, 200859721920

Offset

0,3

Links

Table of n, a(n) for n=0..19.

Crossrefs

Cf. A005950.

Sequence in context: A020426 A101806 A038014 * A274410 A274411 A224970

Adjacent sequences: A005941 A005942 A005943 * A005945 A005946 A005947

Keyword

nonn,easy

Author

N. J. A. Sloane.

Status

approved