975625

Appears in sequences

• Triangle P, read by rows, that satisfies [P^5](n,k) = P(n+1,k+1) for n>=k>=0, also [P^(5*m)](n,k) = [P^m](n+1,k+1) for all m, where [P^m](n,k) denotes the element at row n, column k, of the matrix power m of P, with P(0,k)=1 and P(k,k)=1 for all k>=0.at n=25A111820
• a(n) = (n + 1)^2*(5*n^2 + 10*n + 2)/2.at n=24A269237