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 A015905 Numbers k such that k | 13^k + 13. 11
 1, 2, 13, 14, 26, 182, 286, 2626, 2926, 8866, 10186, 57226, 62686, 118378, 185653, 187838, 284662, 396526, 689546, 792946, 927706, 1110214, 1140686, 1501526, 1943266, 2034406, 2402686, 2427706, 2759926, 3032926, 4450706, 6586426, 6849766, 7319026, 9357518 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Giovanni Resta, Table of n, a(n) for n = 1..400 MATHEMATICA Select[Range[10^6], Mod[13 + PowerMod[13, #, #], #] == 0 &] (* Giovanni Resta, Oct 21 2018 *) CROSSREFS Cf. A006517, A015888, A015889, A015891, A015892, A015893, A015897, A015898, A015902, A015903, A015904, A015906. Sequence in context: A075032 A032932 A089019 * A179164 A022116 A041201 Adjacent sequences:  A015902 A015903 A015904 * A015906 A015907 A015908 KEYWORD nonn AUTHOR EXTENSIONS Missing a(2) and a(33)-a(35) from Giovanni Resta, Oct 21 2018 STATUS approved

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Last modified December 5 17:28 EST 2021. Contains 349557 sequences. (Running on oeis4.)