A015892 Numbers k such that k | 6^k + 6.

1, 2, 3, 6, 14, 42, 66, 111, 606, 742, 3486, 6666, 8646, 13118, 26751, 58618, 66886, 125686, 141526, 144886, 489958, 525994, 695254, 752691, 1198554, 1234806, 2200386, 2479686, 2671306, 2862006, 3277626, 3716602, 5923126, 6490947

Offset: 1

Author

Robert G. Wilson v

Keywords

• nonn

Links

• Giovanni Resta, Table of n, a(n) for n = 1..200

Crossrefs

Cf. A006517, A015888, A015889, A015891, A015893, A015897, A015898, A015902, A015903, A015904, A015905, A015906.

Programs

Mathematica

Select[Range[10^5], Mod[PowerMod[6, #, #] + 6, #] == 0 &] (* Giovanni Resta, Oct 23 2018 *)

Extensions

Missing a(2)-a(3) from Giovanni Resta, Oct 23 2018