195317

Appears in sequences

• Table T(m,n) = (3^m + 5^n)/2, for m, n = 0, 2, 4, 6, ... read by antidiagonals downwards.at n=16A081458
• Numbers k such that (10^(k+2) + 999) * 10^k + 1 is prime.at n=6A246804
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)^2, where a(0) = 2, a(1) = 3, b(0) = 1, and (a(n)) and (b(n)) are increasing complementary sequences.at n=19A296259