813473domain: NAppears in sequencesNumber of (n+1)X(5+1) arrays of permutations of 0..n*6+5 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.at n=6A264547Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.at n=4A264556