A299708 Numbers of the form m^2 + 1 that can be expressed in more than one way as j^2 + k^2 with j > k > 1.
325, 1025, 1445, 1850, 2210, 3250, 4625, 4901, 5185, 5330, 6725, 6890, 8650, 9605, 9802, 11450, 12545, 13690, 13925, 14885, 15130, 16385, 17425, 17690, 19045, 20165, 20450, 21905, 24650, 26245, 28225, 29585, 29930, 30277, 31330, 33125, 33490
Offset: 1
Keywords
Examples
a(1) = 325 = A299707(1)^2 + 1 = 18^2 + 1 is expressible in two ways: 325 = 17^2 + 6^2 = 15^2 + 10^2.
Links
- Hugo Pfoertner, Table of n, a(n) for n = 1..10000