400081

Appears in sequences

• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+239)^2 = y^2.at n=13A204765
• Number of vertices formed in a hexagon by straight line segments when connecting the n-1 points between each corner that divide each edge into n equal parts to the n-1 points on the edge on the opposite side of the hexagon.at n=19A367663