40727

Appears in sequences

• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1010-1111 pattern in any orientation.at n=15A146425
• Number of nX3 arrays containing 3 copies of 0..n-1 with no element 1 greater than its north, west or northeast neighbor modulo n and the upper left element equal to 0.at n=4A266290
• T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no element 1 greater than its north, west or northeast neighbor modulo n and the upper left element equal to 0.at n=25A266291
• Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its north, west or northeast neighbor modulo 5 and the upper left element equal to 0.at n=2A266294