47739domain: 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, 0, 0), (0, 0, 1), (0, 1, 1), (1, -1, 0), (1, 1, -1)}.at n=8A150626a(n) = (p*(p+4)+1)/2 where (p,p+4) are the n-th cousin prime pair.at n=17A163634