92972domain: NAppears in sequencesa(n) = floor(7^n/5^n).at n=34A094984Number 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, 0, -1), (0, 1, 1), (1, 0, 0)}.at n=9A150197