G.f.: 1 / (1 + 8*x*G(x)^2 - 10*x*G(x)^3) where G(x) = 1 + x*G(x)^4 is the g.f. of A002293.
A226733
G.f.: 1 / (1 + 8*x*G(x)^2 - 10*x*G(x)^3) where G(x) = 1 + x*G(x)^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =2a(2) =18a(3) =142a(4) =1186a(5) =10152a(6) =88414a(7) =779508a(8) =6936066a(9) =62159224a(10) =560238728a(11) =5072970366a(12) =46114086446a(13) =420558296888
External references
- oeis: A226733