41346061domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumber of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1,-1), (-1,1), (-1,0), (0,1), (1,0), (1,1)}.at n=11A151322Prime numbersat n=2510501