334535domain: 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, 0), (0, 1, -1), (1, 0, 1), (1, 1, 1)}.at n=9A150969a(n) = A066186(n) - A004125(n).at n=32A162362a(1) = a(2) = 1, a(n) = A014777(a(n-1) + a(n-2)), n >= 3.at n=12A280532