655642859domain: NAppears in sequencesNumber of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,1 0,-1 0,1 or 1,0.at n=5A264505Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,1 0,-1 0,1 or 1,0.at n=6A264512