G.f.: 1 / (1 + 12*x*G(x)^4 - 16*x*G^5) where G(x) = 1 + x*G(x)^6 is the g.f. of A002295.
A226705
G.f.: 1 / (1 + 12*x*G(x)^4 - 16*x*G^5) where G(x) = 1 + x*G(x)^6 is the g.f. of A002295.
Terms
- a(0) =1a(1) =4a(2) =48a(3) =600a(4) =7856a(5) =105684a(6) =1447392a(7) =20075416a(8) =281086416a(9) =3964453368a(10) =56240518128a(11) =801624722232
External references
- oeis: A226705