1776894domain: NAppears in sequencesNumber of Boolean functions of n variables and rank 4 from Post class F(5,inf).at n=7A051376Number 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, 1, 0)}.at n=12A149252