a(n) = (1/11) * Sum_{k=0..n-1} binomial(11*n,11*k+1).
A387754
a(n) = (1/11) * Sum_{k=0..n-1} binomial(11*n,11*k+1).
Terms
- a(0) =0a(1) =1a(2) =58788a(3) =40670763a(4) =185108030865
External references
- oeis: A387754
A387754
a(n) = (1/11) * Sum_{k=0..n-1} binomial(11*n,11*k+1).