64552domain: NAppears in sequencesn times n+9 gives the concatenation of two numbers m and m-3.at n=4A116271Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (1, -1, 1), (1, 1, 0), (1, 1, 1)}.at n=8A150929