179529domain: NAppears in sequencesNonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+343)^2 = y^2.at n=27A118611Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.at n=15A298052