G.f. A(x) satisfies: x = Sum_{n>=1} 1/A(x)^(5*n) * Product_{k=1..n} (1 - 1/A(x)^(2*k-1)).
A247480
G.f. A(x) satisfies: x = Sum_{n>=1} 1/A(x)^(5*n) * Product_{k=1..n} (1 - 1/A(x)^(2*k-1)).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =21a(4) =172a(5) =1557a(6) =14937a(7) =148870a(8) =1523150a(9) =15874211a(10) =167584946a(11) =1784250269a(12) =19082848084a(13) =204183773733
External references
- oeis: A247480