G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n / (1-x)^( n*(n+1)/2 ) / A(x)^( (n+1)*(n+2)/2 ).

Terms

a(0) =1a(1) =1a(2) =0a(3) =1a(4) =0a(5) =1a(6) =1a(7) =0a(8) =4a(9) =0a(10) =6a(11) =13a(12) =9a(13) =48a(14) =101a(15) =147a(16) =542a(17) =1244a(18) =2385a(19) =8158a(20) =19191a(21) =44960a(22) =145355a(23) =356921a(24) =953648a(25) =2971797a(26) =7728368a(27) =22395844a(28) =68642687a(29) =189610373