57218481domain: NAppears in sequencesTable read by descending antidiagonals: T(k,n) (k >= 0, n>= 1) is number of ways to (k+2)-color a 3 X n grid ignoring the variations of two colors.at n=38A355881Number of ways to 4-color a 3 X n grid ignoring the variations of two colors.at n=6A355882