A248406 Noncongruent squarefree numbers n with A248395(n)/d(n) = -2, where d(n) = A000005(n).

146, 178, 274, 322, 466, 938, 994, 1002, 1234, 1394, 1498, 1714, 1866, 1906, 2066, 2098, 2162, 2194, 2386, 2578, 2586, 2786, 2794, 2962, 3002, 3034, 3218, 3266, 3346, 3658, 3682, 3914, 3986, 4090, 4130, 4594, 4738, 4786, 4946, 5170, 5210, 5234, 5266, 5402, 5458

Offset: 1

Author

N. J. A. Sloane, Oct 20 2014

Keywords

• nonn

Links

• J. B. Tunnell, A classical Diophantine problem and modular forms of weight 3/2, Invent. Math., 72 (1983), 323-334.

Crossrefs

Cf. A000005, A003273, A248394, A248395, A248397-A248406.

Extensions

More terms from Amiram Eldar, Oct 13 2019