558643720724domain: NAppears in sequencesNumber of (n+2)X5 0..4 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=4A186090Number of (n+2)X7 0..4 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=2A186092