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 A015897 #16 Oct 23 2018 05:47:43 %S A015897 1,2,4,6,8,12,18,24,36,66,72,76,344,396,804,946,1548,1986,3336,5526, %T A015897 7596,8196,8646,10116,11916,21846,25156,34056,43352,47972,51426,66788, %U A015897 117522,131076,180246,195084,199606,250284,265826,307876,319404 %N A015897 Numbers k such that k | 8^k + 8. %H A015897 Charles R Greathouse IV, <a href="/A015897/b015897.txt">Table of n, a(n) for n = 1..733</a> %o A015897 (PARI) is(n)=Mod(8,n)^n==-8 \\ _Charles R Greathouse IV_, Oct 08 2015 %Y A015897 Cf. A006517, A015888, A015889, A015891, A015892, A015893, A015898, A015902, A015903, A015904, A015905, A015906. %K A015897 nonn %O A015897 1,2 %A A015897 _Robert G. Wilson v_ %E A015897 a(2)-a(4) inserted by _Charles R Greathouse IV_, Oct 08 2015