62080domain: NAppears in sequencesa(n) = 8*a(n-1) - 16*a(n-2) + 12*a(n-4) with a(0)=0, a(1)=1, a(2)=4, a(3)=22.at n=8A084157Number of (2+1) X (n+1) arrays of permutations of 0..n*3+2 with each element having directed index change 1,0 0,-1 1,2 or -1,1.at n=13A264585