70245

Appears in sequences

• Cupolar numbers: a(n) = (n+1)*(5*n^2 + 7*n + 3)/3.at n=34A096000
• Triangle read by rows, X^n * [1,0,0,0,...]; where X = a tridiagonal matrix with (1,1,1,...) in the main and subsubdiagonals and (1,2,3,...) in the subdiagonal.at n=57A140734
• Triangle read by rows, T(n, k) = A000670(n) * binomial(n, k).at n=23A362585
• Triangle read by rows, T(n, k) = A000670(n) * binomial(n, k).at n=25A362585