A015974 Numbers k that divide 4^k + 1, k not a power of 5.

205, 1025, 2525, 5125, 8405, 12625, 25625, 42025, 63125, 103525, 128125, 168305, 202525, 210125, 255025, 315625, 344605, 517625, 640625, 841525, 875125, 1012625, 1050625, 1275125, 1578125, 1723025, 2042725, 2084645

Offset: 1

Author

Robert G. Wilson v

Keywords

• nonn

Crossrefs

Cf. A015950.