93228domain: NAppears in sequencesNumber of lines through exactly 3 points of an n X n grid of points.at n=43A018810Numbers k such that prime(k+1)^2 == prime(k)^2 (mod k).at n=43A067783Lexicographically last sequence such that every odd prime is the sum of at least two terms of the sequence.at n=19A242261