G.f.: A(x,y) = Sum_{n>=0,m>=0} (2^m-1)^n*x^n * log(1+y)^m/m!.

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =0a(6) =1a(7) =4a(8) =4a(9) =1a(10) =0a(11) =1a(12) =13a(13) =44a(14) =67a(15) =56a(16) =28a(17) =8a(18) =1a(19) =0a(20) =1a(21) =40a(22) =360a(23) =1546a(24) =4144a(25) =7896a(26) =11408a(27) =12866a(28) =11440a(29) =8008