G.f.: A(x) = Sum_{n>=0} x^n * C(x)^(n^2), where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers (A000108).
A183608
G.f.: A(x) = Sum_{n>=0} x^n * C(x)^(n^2), where C(x) = 1 + x*C(x)^2 is the g.f. of the Catalan numbers (A000108).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =29a(5) =133a(6) =658a(7) =3471a(8) =19400a(9) =114417a(10) =709815a(11) =4619048a(12) =31446579a(13) =223419752a(14) =1652599036a(15) =12698380493a(16) =101151995810a(17) =833740791381
External references
- oeis: A183608