G.f.: 1/B(x) where B(x) = g.f. for A072964.

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =-1a(4) =0a(5) =-2a(6) =-4a(7) =-4a(8) =-8a(9) =-10a(10) =-17a(11) =-10a(12) =6a(13) =45a(14) =260a(15) =604a(16) =1285a(17) =3329a(18) =6755a(19) =12550a(20) =25790a(21) =46302a(22) =75922a(23) =129739a(24) =188164a(25) =215880a(26) =177637a(27) =-208052a(28) =-1480885a(29) =-4563499