100659domain: NAppears in sequencesInteger part of the area of circles with prime radii.at n=40A097427Number of n X 4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,3,4 for x=0,1,2,3,4.at n=11A196134Numbers k that divide the k-th little Schroeder number.at n=32A372903