Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n-1)/2) * A(x)^n.
A369086
Expansion of g.f. A(x) satisfying 2 = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n-1)/2) * A(x)^n.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =12a(4) =22a(5) =144a(6) =314a(7) =2094a(8) =4980a(9) =33962a(10) =85104a(11) =589050a(12) =1526520a(13) =10690958a(14) =28357414a(15) =200513838a(16) =540848844a(17) =3855418084a(18) =10529575602a(19) =75589847732a(20) =208400923746
External references
- oeis: A369086