A305920 Inverse Euler transform of A008408.

0, 196560, 16773120, -18919981080, -3292295086080, 2312547886368720, 640457437563740160, -302667453389051314200, -123005476312830648176640, 39529719620247267255853008, 23306082528463942764630528000, -4849033309391159571741461446680

Offset

1,2

Comments

a(n) is a multiple of 24.

Links

Seiichi Manyama, Table of n, a(n) for n = 1..377

N. J. A. Sloane, Transforms

Eric Weisstein's World of Mathematics, Leech Lattice

Example

1 + 196560*q^2 + 16773120*q^3 + 398034000*q^4 + ... = (1-q^2)^(-196560) * (1-q^3)^(-16773120) * (1-q^4)^18919981080 * ... .

Crossrefs

Cf. A008408, A108093.

Sequence in context: A202434 A179253 A008408 * A001942 A034597 A037148

Adjacent sequences: A305917 A305918 A305919 * A305921 A305922 A305923

Keyword

sign

Author

Seiichi Manyama, Jun 14 2018

Status

approved