583451domain: NAppears in sequencesExpansion of -x*(8*x^2-4*x+1) / ((2*x-1)*(4*x^2-x+1)).at n=19A112260Number 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, 0), (1, 0, 1), (1, 1, -1)}.at n=10A150257