G.f.: Sum_{n>=0} binomial(n^2, n) * x^n / (1 + x)^(n^2).
A298695
G.f.: Sum_{n>=0} binomial(n^2, n) * x^n / (1 + x)^(n^2).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =61a(4) =1123a(5) =27671a(6) =853411a(7) =31603447a(8) =1365807689a(9) =67469763889
External references
- oeis: A298695