15187422domain: NAppears in sequencesNumber of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.at n=5A264533Number of (6+1) X (n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -2,-2 -1,0 0,1 or 1,0.at n=6A264539