282538domain: NAppears in sequencesNumber of binary sequences of length n with no subsequence 01110.at n=19A118891Number 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, 1, 0), (0, 0, 1), (1, -1, 1), (1, 1, -1)}.at n=11A148463