627271domain: NPropertiesPrimalityPrimeyesAppears 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, 0, 1), (-1, 1, 0), (0, -1, 1), (0, 1, 1), (1, 1, -1)}.at n=11A1490092*A197072(n-1) - A197072(n).at n=27A197100Prime numbersat n=51147