72035domain: NAppears in sequencesa(0)=1, a(1)=5; a(n) = 6*a(n-1) + 5*a(n-2) for n > 1.at n=6A091928Number 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, 1, 0), (1, 0, -1), (1, 1, 0), (1, 1, 1)}.at n=8A150940