G.f. satisfies: x = Sum_{n>=1} 1/A(x)^(6*n) * Product_{k=1..n} (1 - 1/A(x)^k).
A209442
G.f. satisfies: x = Sum_{n>=1} 1/A(x)^(6*n) * Product_{k=1..n} (1 - 1/A(x)^k).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =45a(4) =470a(5) =5365a(6) =64766a(7) =813012a(8) =10505163a(9) =138800397a(10) =1866712401a(11) =25470265992a(12) =351717013269
External references
- oeis: A209442