E.g.f. satisfies A(x) = exp(x * (1 + x + x^2) * A(x^3)).
A367748
E.g.f. satisfies A(x) = exp(x * (1 + x + x^2) * A(x^3)).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =13a(4) =73a(5) =501a(6) =4051a(7) =40153a(8) =434673a(9) =5231593a(10) =71641891a(11) =1051099941a(12) =16673401273a(13) =289579557853
External references
- oeis: A367748