Expansion of (1/x) * Series_Reversion( x / ((1+x)^2 * B(x)) ), where B(x) is the g.f. of A002293.
A381909
Expansion of (1/x) * Series_Reversion( x / ((1+x)^2 * B(x)) ), where B(x) is the g.f. of A002293.
Terms
- a(0) =1a(1) =3a(2) =16a(3) =121a(4) =1117a(5) =11569a(6) =128648a(7) =1500054a(8) =18091859a(9) =223794730a(10) =2823369749a(11) =36185653049a(12) =469808971400
External references
- oeis: A381909