155034

Appears in sequences

• Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0110-1111 pattern in any orientation.at n=11A146384
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 0110-1111 pattern in any orientation.at n=24A146386
• Array read by downward antidiagonals: A(n,k) = A(n-1,k+1) + (k+1)*Sum_{j=0..k} binomial(k, j)*A(n-1,j) with A(0,k) = 1, n >= 0, k >= 0.at n=39A370382