880088domain: NAppears in sequencesNumbers k such that k and k^2 use only the digits 0, 4, 5, 7 and 8.at n=24A136951Number 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), (1, 0, 1)}.at n=10A150607