121611

Appears in sequences

• Numbers whose sum of digits s equals its product of digits and s + 1 and s - 1 are both prime.at n=23A061597
• Table read by rows: T(n, k) = T(n, k-1) + m * T(n-1, n-k) for k > 1, T(n, 1) = T(n-1, n-1), and T(n, 0) = 0^n, for m = 2.at n=48A385895