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 A304040 #5 May 05 2018 11:36:12 %S A304040 1,2,4,7,11,22,61,101,217,4846,29419 %N A304040 Numbers k such that A026007(k) is divisible by k. %C A304040 No other terms below 225000. %e A304040 217 is in the sequence because A026007(217) = 282948942888849443580867409 = 1303912179211287758437177 * 217. %Y A304040 Cf. A026007, A051177, A056848, A285223, A304028. %K A304040 nonn,more %O A304040 1,2 %A A304040 _Vaclav Kotesovec_, May 05 2018