A215585 n-th derivative of cos(x)^tanh(x) at x=0.

1, 0, 0, -3, 0, 10, 90, -308, -1680, -1560, 123480, 43032, -5151960, -40323920, 538618080, 3880887592, -32036135040, -815589894720, 4367132072640, 121636569852672, -35223107829120, -29236492773887360, -32794445470765440, 6014518868589379072, 45105535773064694400

Offset

0,4

Links

Table of n, a(n) for n=0..24.

Mathematica

f[x_] := Cos[x]^Tanh[x]; Table[Derivative[ n] [f][0], {n, 0, 25}]

Crossrefs

Cf. A215587.

Sequence in context: A215514 A215347 A186247 * A215682 A215681 A215587

Adjacent sequences: A215582 A215583 A215584 * A215586 A215587 A215588

Keyword

sign

Author

Michel Lagneau, Aug 16 2012

Status

approved