Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #5 Aug 20 2012 15:33:28
%S 1,0,0,3,0,20,90,203,3360,11640,123480,971883,7155720,81842540,
%T 689969280,8098733243,87787889280,1037050927920,13312247451840,
%U 170378180195283,2401844355066240,34222349644158980,518547579965036160,8138997539240165003,132773771778775670400
%N n-th derivative of sec(x)^sinh(x) at x=0.
%C sec(x) = 1/cos(x).
%F E.g.f.: sec(x)^sinh(x).
%p a:= n-> n!* coeff(series(sec(x)^sinh(x), x, n+1), x, n):
%p seq (a(n), n=0..25); # _Alois P. Heinz_, Aug 20 2012
%t f[x_] := Sec[x]^Sinh[x]; Table[Derivative[n][f][0],{n,0,25}]
%Y Cf. A215583.
%K nonn
%O 0,4
%A _Michel Lagneau_, Aug 20 2012