38059

Appears in sequences

• Number of (n+6)X10 0..1 matrices with each 7X7 subblock idempotent.at n=8A224584
• Number of (n+2)X(1+2) 0..2 arrays with each row and column divisible by 11, read as a base-3 number with top and left being the most significant digits.at n=11A263330
• G.f. A(x) satisfies A(x) = 1 + x^3 * A(x)^2 / (1 - x).at n=22A346503