G.f. = f(x), where f(x)^2 = o.g.f. for A088313 (with offset 0).
A109777
G.f. = f(x), where f(x)^2 = o.g.f. for A088313 (with offset 0).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =101a(5) =829a(6) =7891a(7) =84735a(8) =1009065a(9) =13170841a(10) =186798003a(11) =2859068831a(12) =46960097413a(13) =823787983021
External references
- oeis: A109777