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

Terms

a(0) =1a(1) =0a(2) =0a(3) =3a(4) =0a(5) =-10a(6) =90a(7) =112a(8) =-1680a(9) =5112a(10) =52920a(11) =-328504a(12) =-1255320a(13) =23508784a(14) =14510496a(15) =-1763573160a(16) =4091068800a(17) =159016114496a(18) =-879390741312