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 A304049 #4 May 05 2018 12:36:52 %S A304049 1,2,14,75,292,421,1841,3101,4466,60605,87403 %N A304049 Numbers k such that A027998(k) is divisible by k. %C A304049 No other terms below 100000. %e A304049 75 is in the sequence because A027998(75) = 1005156449936335004175 = 13402085999151133389 * 75. %Y A304049 Cf. A027998. %K A304049 nonn,more %O A304049 1,2 %A A304049 _Vaclav Kotesovec_, May 05 2018