Expansion of e.g.f. arctanh(exp(x)*log(x+1)).

Terms

a(0) =0a(1) =1a(2) =1a(3) =4a(4) =12a(5) =103a(6) =595a(7) =6508a(8) =58800a(9) =786973a(10) =9744373a(11) =155024956a(12) =2434745852a(13) =45189575715a(14) =856361535783