A215588 n-th derivative of cosh(x)^tanh(x) at x=0.

1, 0, 0, 3, 0, -30, 90, 588, -5040, -11400, 325080, -336072, -25237080, 126955920, 2273150880, -25210740552, -217110741120, 4985924326080, 16380284725440, -1066531842442752, 1493617498611840, 249776526926340480, -1647997041357152640, -63281386481329443072

Offset

0,4

Links

Alois P. Heinz, Table of n, a(n) for n = 0..200

Formula

E.g.f.: cosh(x)^tanh(x).

Maple

a:= n-> n!* coeff(series(cosh(x)^tanh(x), x, n+1), x, n):
seq (a(n), n=0..25);  # Alois P. Heinz, Aug 20 2012

Mathematica

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

Crossrefs

Cf. A215586, A215683.

Sequence in context: A143769 A190963 A296436 * A215683 A215586 A215680

Adjacent sequences: A215585 A215586 A215587 * A215589 A215590 A215591

Keyword

sign

Author

Michel Lagneau, Aug 16 2012

Status

approved