871140domain: NAppears in sequencesa(n) = Sum_{i=1..n} binomial(i+1,2)^4.at n=6A085439Number 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), (0, 0, 1), (0, 1, 0), (1, 0, 0), (1, 1, 1)}.at n=9A151247