A363784 L.g.f.: log( Sum_{k>=0} x^(k^4) ).

1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28, 29, -30, 15, 1, -18, 36, -55, 75, -96, 118, -141, 165, -190, 216, -243, 271, -300, 330, -345, 344, -326, 290, -235, 160, -64, -54, 195, -360, 550, -766, 1009, -1280, 1580

Offset

1,16

Links

Seiichi Manyama, Table of n, a(n) for n = 1..1000

Formula

L.g.f.: L(x) = Sum_{k>=1} a(k)*x^k/k = log( Sum_{k>=0} x^(k^4) ).

Crossrefs

Cf. A162552, A363783.

Sequence in context: A247388 A291575 A004504 * A296751 A297281 A176294

Adjacent sequences: A363781 A363782 A363783 * A363785 A363786 A363787

Keyword

sign

Author

Seiichi Manyama, Jun 21 2023

Status

approved