Denominator of Sum_{k=0..n} binomial(n,k)/(n^2+k^2+1).
A086721
Denominator of Sum_{k=0..n} binomial(n,k)/(n^2+k^2+1).
Terms
- a(0) =1a(1) =6a(2) =45a(3) =7315a(4) =153153a(5) =41769a(6) =79511041331a(7) =21348855a(10) =78880516715
External references
- oeis: A086721