138362domain: NAppears in sequencesNumber 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, 1), (0, -1, 1), (0, 1, 1), (1, 1, 0)}.at n=9A150503Number of permutations of [n] avoiding {2143, 4132, 1324}.at n=11A294815