G.f.: Sum_{n>=0} (1 + (1+x)^n)^n / (2 + (1+x)^n)^(n+1).
A302598
G.f.: Sum_{n>=0} (1 + (1+x)^n)^n / (2 + (1+x)^n)^(n+1).
Terms
- a(0) =1a(1) =1a(2) =6a(3) =58a(4) =798a(5) =14150a(6) =307076a(7) =7881756a(8) =233536532a(9) =7844786248a(10) =294582696686
External references
- oeis: A302598