G.f. satisfies: A(x) = 1/Product_{n>=1} (1 - 2*x^n*A(x^n)).
A205772
G.f. satisfies: A(x) = 1/Product_{n>=1} (1 - 2*x^n*A(x^n)).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =50a(4) =290a(5) =1766a(6) =11442a(7) =76522a(8) =526574a(9) =3697722a(10) =26403186a(11) =191072922a(12) =1398344838a(13) =10330855286a(14) =76945148882a(15) =577135722754
External references
- oeis: A205772