124613domain: NAppears in sequencesConcatenation of (3n-2), (3n-1) and 3n divided by 3.at n=12A082252Number 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, 0), (0, 1, -1), (0, 1, 1), (1, 0, 0), (1, 1, 1)}.at n=8A151199