OFFSET
0,3
MATHEMATICA
Table[(2 n)! SeriesCoefficient[Exp[n (Cosh[x] - 1)], {x, 0, 2 n}], {n, 0, 15}]
Table[(-1)^n (2 n)! SeriesCoefficient[Exp[n (Cos[x] - 1)], {x, 0, 2 n}], {n, 0, 15}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Sep 29 2017
STATUS
approved