Expansion of e.g.f. log(1 - x * log(1 - x)).

Terms

a(0) =0a(1) =0a(2) =2a(3) =3a(4) =-4a(5) =-30a(6) =54a(7) =1260a(8) =3856a(9) =-36288a(10) =-279000a(11) =2970000a(12) =56725008a(13) =109343520a(14) =-5495740992a(15) =-26086263840