3320993180domain: NAppears in sequencesNumber of (n+1)X(5+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.at n=5A238252Number of (n+1)X(6+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.at n=4A238253