A065709 Reduced sequence related to reciprocal Pythagorean triples: 1/a(n)^2 + 1/k^2 = 1/j^2 has an integer solution (k,j) with k
156, 255, 312, 468, 510, 609, 624, 765, 936, 1092, 1218, 1248, 1275, 1295, 1404, 1530, 1716, 1785, 1827, 1872, 2028, 2184, 2295, 2385, 2436, 2496, 2550, 2590, 2652, 2805, 2808, 2964, 3045, 3276, 3315, 3432, 3570, 3588, 3654, 3744, 3825, 3885, 4015, 4056, 4095
Offset: 1
Keywords
Examples
a(10)=1218: 1/a(10)^2 + 1/1160^2 = 1/840^2
Crossrefs
A065607 (includes multiples of 20)
Extensions
Offset corrected and more terms from Sean A. Irvine, Sep 09 2023