G.f. A(x) satisfies: 2*x = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x)^n.
A355352
G.f. A(x) satisfies: 2*x = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x)^n.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =50a(4) =248a(5) =1294a(6) =7092a(7) =40426a(8) =236698a(9) =1412860a(10) =8561906a(11) =52546920a(12) =326011118a(13) =2041512624a(14) =12886608654a(15) =81908498582a(16) =523780469070
External references
- oeis: A355352