837409domain: 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, -1, 0), (-1, 0, 1), (1, -1, 0), (1, 0, 0), (1, 1, -1)}.at n=13A148199Number of (n+3) X 10 0..1 matrices with each 4 X 4 subblock idempotent.at n=26A224567Prime numbersat n=66704