G.f. A(x) satisfies: 0 = Sum_{n=-oo..+oo} x^(n*(n+1)/2) * (x^n - (-1)^n*2*A(x))^(n+1).
A355153
G.f. A(x) satisfies: 0 = Sum_{n=-oo..+oo} x^(n*(n+1)/2) * (x^n - (-1)^n*2*A(x))^(n+1).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =49a(4) =272a(5) =1617a(6) =10082a(7) =65101a(8) =431635a(9) =2921557a(10) =20104828a(11) =140240820a(12) =989366180a(13) =7046832503a(14) =50604822586a(15) =365995915453
External references
- oeis: A355153