A176475 The coefficients (times n!) of the expansion of the sum {k=1 to Inf.} of Tan(x^n).

0, 1, 2, 8, 24, 136, 960, 5312, 40320, 491776, 4112640, 40270592, 638668800, 6249389056, 91883151360, 1919826163712, 20922789888000, 355897293438976, 8676514912665600, 121674189293944832, 2757288942600192000

Offset

1,3

Links

Table of n, a(n) for n=1..21.

Mathematica

Range[0, 25]! CoefficientList[ Series[ Sum[ Tan[x^n], {n, 35}], {x, 0, 25}], x]

Crossrefs

Cf. A176473, A176474.

Sequence in context: A272590 A361991 A087982 * A145238 A093458 A242456

Adjacent sequences: A176472 A176473 A176474 * A176476 A176477 A176478

Keyword

nonn

Author

Robert G. Wilson v, Apr 18 2010

Status

approved