This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A015892 #12 Oct 23 2018 05:43:10 %S A015892 1,2,3,6,14,42,66,111,606,742,3486,6666,8646,13118,26751,58618,66886, %T A015892 125686,141526,144886,489958,525994,695254,752691,1198554,1234806, %U A015892 2200386,2479686,2671306,2862006,3277626,3716602,5923126,6490947 %N A015892 Numbers k such that k | 6^k + 6. %H A015892 Giovanni Resta, <a href="/A015892/b015892.txt">Table of n, a(n) for n = 1..200</a> %t A015892 Select[Range[10^5], Mod[PowerMod[6, #, #] + 6, #] == 0 &] (* _Giovanni Resta_, Oct 23 2018 *) %Y A015892 Cf. A006517, A015888, A015889, A015891, A015893, A015897, A015898, A015902, A015903, A015904, A015905, A015906. %K A015892 nonn %O A015892 1,2 %A A015892 _Robert G. Wilson v_ %E A015892 Missing a(2)-a(3) from _Giovanni Resta_, Oct 23 2018