A320729 Inverse Euler transform of A008409.

0, 4320, 61440, -8810640, -263208960, 22737197280, 1104970014720, -61319781714960, -4559126871265280, 157589681950830816, 18460588655551795200, -337394373951169867920, -73200715363477357608960, 306095068890572836888800, 283363485933298319434493952, 2600519516007145850005282800

Offset: 1

Author

Seiichi Manyama, Oct 20 2018

Keywords

• sign

Comments

a(n) is a multiple of 16.

Examples

			1 + 4320*q^2 + 61440*q^3 + 522720*q^4 + ... = (1-q^2)^(-4320) * (1-q^3)^(-61440) * (1-q^4)^8810640 * ... .
		

Links

• Seiichi Manyama, Table of n, a(n) for n = 1..549
• N. J. A. Sloane, Transforms
• Eric Weisstein's World of Mathematics, Barnes-Wall Lattice

Crossrefs

Cf. A008409, A108094.