52123domain: 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, -1, 0), (-1, 1, 1), (0, 1, 0), (1, 0, -1), (1, 0, 0)}.at n=9A149973Number of binary necklaces of length n which have more 00 than 01 substrings.at n=17A371668