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 A286004 #12 Feb 02 2021 16:08:30 %S A286004 12,20,24,33,37,43,51,52,65,69,77,83,87,96,100,118,124,132,133,160, %T A286004 164,172,199,226,230,234,238,245,249,253,267,275,298,306,307,315,320, %U A286004 338,346,347,351,355,361,362,363,376,380,384,388,402,411,415,433,437,442,443,451 %N A286004 Numbers n such that 5^n is the highest power of 5 dividing A240751(n). %H A286004 David A. Corneth, <a href="/A286004/b286004.txt">Table of n, a(n) for n = 1..10000</a> %Y A286004 Cf. A005187, A240751, A286003, A286005-A286010. %K A286004 nonn,easy %O A286004 1,1 %A A286004 _David A. Corneth_, May 01 2017