72686domain: NAppears in sequencesNumber of positive integers <= 2^n of form 5 x^2 + 8 y^2.at n=20A054178Number 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, 0), (0, 1, 1), (1, -1, -1), (1, 0, -1)}.at n=10A148832