A252853 Number of (n+2)X(n+2) 0..2 arrays with every consecutive three elements in every row, column, diagonal and antidiagonal having exactly two distinct values, and new values 0 upwards introduced in row major order

117, 432, 1197, 3582, 14229, 60588, 275598, 1334322, 6954849, 38574297, 227384559, 1439372097