226457

Appears in sequences

• Number of n X 5 binary arrays without the pattern 0 1 diagonally or vertically.at n=23A188839
• G.f. A(x) satisfies: A(x) = 1 + x + x^3 * A(x)^2 / (1 - x).at n=21A346504
• Number of n-digit primes in A104179.at n=22A376433