G.f.: Sum_{n>=0} ( 1/(1-x)^n - (1-x)^n )^n.
A319947
G.f.: Sum_{n>=0} ( 1/(1-x)^n - (1-x)^n )^n.
Terms
- a(0) =1a(1) =2a(2) =17a(3) =233a(4) =4457a(5) =109599a(6) =3294200a(7) =117023348a(8) =4796944724a(9) =222859320409
External references
- oeis: A319947