196433

Appears in sequences

• Numbers k such that 31*2^k-1 is prime.at n=37A050541
• Number of (n+2) X 4 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..1 introduced in row major order.at n=23A204748
• G.f. A(x) satisfies A(x)^3 = A(x^3) + 3*A(x^4).at n=15A377256