A023926 Theta series of A*_14 lattice.

1, 0, 0, 0, 0, 0, 0, 30, 0, 0, 0, 0, 0, 210, 0, 210, 0, 0, 910, 0, 0, 0, 5460, 0, 0, 6006, 0, 10010, 23820, 0, 8190, 0, 0, 30450, 0, 0, 0, 123270, 0, 0, 101010, 0, 132990, 305760, 0, 102830, 0, 0, 303030, 0, 0, 0, 974820, 0, 0, 663390, 0, 827190, 1861860, 0

Offset

0,8

References

J. H. Conway and N. J. A. Sloane, Sphere Packings, Lattices and Groups, Springer-Verlag, p. 114.

Links

Table of n, a(n) for n=0..59.

Kok Seng Chua, The Root Lattice A*n and Ramanujan's Circular Summation of Theta Functions, Proc. Amer. Math. Soc. 130 (2002), 1-8.

Crossrefs

Sequence in context: A144839 A124992 A296522 * A022068 A277043 A361058

Adjacent sequences: A023923 A023924 A023925 * A023927 A023928 A023929

Keyword

nonn

Author

N. J. A. Sloane.

Extensions

More terms from Sean A. Irvine, Jul 15 2020

Status

approved