Expansion of e.g.f. arcsinh(exp(x)-1).

Terms

a(0) =0a(1) =1a(2) =1a(3) =0a(4) =-5a(5) =-15a(6) =46a(7) =735a(8) =2185a(9) =-33390a(10) =-453479a(11) =-364155a(12) =57806200a(13) =681966285a(14) =-3289884779a(15) =-197798065920