A045593 Numbers k that divide 9^k + 4^k.

1, 13, 169, 2197, 14209, 28561, 184717, 371293, 2401321, 4826809, 15530437, 31217173, 62748517, 130238329, 178895977, 201895681, 405823249, 815730721, 1693098277, 2325647701, 2422762381, 2624643853, 4286414821, 5275702237

Offset: 1

Author

David W. Wilson

Keywords

• nonn

Crossrefs

Cf. A074608.