G.f. satisfies: A(x) = Sum_{n>=0} x^n*A(x)^binomial(n+2,3).
A191809
G.f. satisfies: A(x) = Sum_{n>=0} x^n*A(x)^binomial(n+2,3).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =7a(4) =32a(5) =174a(6) =1071a(7) =7281a(8) =53943a(9) =432555a(10) =3743146a(11) =34934853a(12) =351853883a(13) =3827477399a(14) =44985837602a(15) =570985992828
External references
- oeis: A191809