A045600 Numbers k that divide 7^k + 6^k.

1, 13, 169, 2197, 28561, 371293, 2684903, 4826809, 34903739, 62748517, 257734633, 453748607, 815730721, 3185696137, 3350550229, 5898731891, 10604499373, 41414049781, 42655053961, 43557152977, 76683514583

Offset: 1

Author

David W. Wilson

Keywords

• nonn

Crossrefs

Cf. A074619.