G.f. satisfies: A(x) = Sum_{n>=0} x^n * Sum_{k=0..n} C(n,k) * (A(x)^k - x^k)^k * x^(k*(n-k)).
A245107
G.f. satisfies: A(x) = Sum_{n>=0} x^n * Sum_{k=0..n} C(n,k) * (A(x)^k - x^k)^k * x^(k*(n-k)).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =15a(4) =71a(5) =444a(6) =3156a(7) =24021a(8) =195445a(9) =1678810a(10) =15109730a(11) =141918887a(12) =1387000940a(13) =14077705892a(14) =148201957507
External references
- oeis: A245107