185861domain: 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, 0, 1), (1, -1, 0), (1, 1, -1)}.at n=11A148461a(n) = Sum_{k=0..3} f(n+k)^2 where f=A130519.at n=41A238604