a(n) = Sum_{k=0..2*n} R(2*n, k, 1) where R(n, k, x) = Sum_{u=0..k} ( Sum_{j=0..u} x^j * binomial(u, j) * (j + 1)^n ) / (u + 1).
A362998
a(n) = Sum_{k=0..2*n} R(2*n, k, 1) where R(n, k, x) = Sum_{u=0..k} ( Sum_{j=0..u} x^j * binomial(u, j) * (j + 1)^n ) / (u + 1).
Terms
- a(0) =1a(1) =14a(2) =867a(3) =191476a(4) =92323925a(5) =78056422494
External references
- oeis: A362998