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%I #14 Aug 09 2021 13:57:48
%S 1,13,169,2197,28561,371293,2684903,4826809,34903739,62748517,
%T 257734633,453748607,815730721,3185696137,3350550229,5898731891,
%U 10604499373,41414049781,42655053961,43557152977,76683514583
%N Numbers k that divide 7^k + 6^k.
%Y Cf. A074619.
%K nonn
%O 1,2
%A _David W. Wilson_
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