E.g.f. log(1 + log(1+x)*exp(x)).

Terms

a(0) =0a(1) =1a(2) =0a(3) =1a(4) =-5a(5) =23a(6) =-129a(7) =894a(8) =-7202a(9) =65365a(10) =-661763a(11) =7412348a(12) =-91009060a(13) =1214988851a(14) =-17522921545a(15) =271538506004