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A215588
n-th derivative of cosh(x)^tanh(x) at x=0.
3
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
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
Sequence in context: A143769 A190963 A296436 * A215683 A215586 A215680
KEYWORD
sign
AUTHOR
Michel Lagneau, Aug 16 2012
STATUS
approved