1145719domain: 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, 0), (-1, 0, 1), (0, 1, -1), (1, 0, 1)}.at n=13A148770Expansion of (1+11*x+24*x^2+11*x^3+x^4)/(1-x)^5.at n=27A294433