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 A045594 #13 Aug 10 2021 05:11:18 %S A045594 1,2,4,7,8,16,32,49,58,64,128,136,256,343,512,1024,1552,1682,2048, %T A045594 2312,2401,2564,4096,6176,8192,11179,16384,16807,24059,32768,32896, %U A045594 39304,48778,65536,78253,117649,131072,150544,168413,183944,262144,524288 %N A045594 Numbers k that divide 10^k + 4^k. %Y A045594 Cf. A081343. %K A045594 nonn %O A045594 1,2 %A A045594 _David W. Wilson_