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 A048265 #15 Jun 11 2021 00:20:34 %S A048265 1,2,3,4,5,6,8,9,10,11,12,14,15,16,17,18,21,22,23,24,25,27,28,29,30, %T A048265 33,34,35,36,40,41,42,45,46,47,48,49,52,53,54,55,58,59,60,64,65,66,71, %U A048265 72,77,78,83,84,85,89,90,91,95,96,101,102,108,114,115,120,121,125,126,132 %N A048265 Positive integers that aren't the sum of distinct primes of the form 6k+1. %C A048265 a(79)=205 is the largest term of this sequence. %D A048265 David Wells, The Penguin Dictionary of Curious and Interesting Numbers, entry 205. %H A048265 Sean A. Irvine, <a href="/A048265/b048265.txt">Table of n, a(n) for n = 1..79</a> %K A048265 fini,full,nonn %O A048265 1,2 %A A048265 _Jud McCranie_