A015673 Expansion of e.g.f. theta_3^(15/2).

1, 15, 195, 2145, 19665, 158535, 1447875, 18243225, 232985025, 2435846175, 28443399075, 508347464625, 8431258460625, 109007191668375, 1781609910955875, 40590985621811625, 792811219265690625

Offset

0,2

References

J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 102.

Links

Seiichi Manyama, Table of n, a(n) for n = 0..446

Mathematica

nmax = 25; CoefficientList[Series[EllipticTheta[3, 0, x]^(15/2), {x, 0, nmax}], x] * Range[0, nmax]! (* Vaclav Kotesovec, Oct 23 2018 *)

Crossrefs

Sequence in context: A201883 A324357 A172204 * A125472 A098300 A185899

Adjacent sequences: A015670 A015671 A015672 * A015674 A015675 A015676

Keyword

nonn

Author

N. J. A. Sloane

Status

approved