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 A246022 #18 Jun 05 2015 10:40:00 %S A246022 1,4,6,10,12,1,516,18,202122,242,28,30,3,3,6,3,94041,444546,4849, %T A246022 52535455,58,60,6,646566,686,0,72,74,78,8,848,888990,9495,98,0,102, %U A246022 104,6,108,1,112,1141,16,201,22,26,1,29130,3,4,6,138,1,411,44,47148,150,531 %N A246022 Prime sieve of Champernowne constant A033307. %C A246022 Start with the decimal expansion of the Champernowne constant A033307: %C A246022 12345678910111213141516171819202122232425262728293031323334353637383940\ %C A246022 4142434445464748495051525354555657... %C A246022 Find the first occurrence of the prime 2 and replace it with a space: %C A246022 1 3456789101112131415161718192021222324252627282930... %C A246022 1 456789101112131415161718192021222324252627282930... Repeat the process with 3 %C A246022 1 4 6789101112131415161718192021222324252627282930... Then 5 %C A246022 1 4 6 89101112131415161718192021222324252627282930... Then 7 %C A246022 1 4 6 8910 12 141516 18 202122 24252627282930... Then 11, 13, 17, etc., until the first occurrence of every prime is eliminated. 89, 41, 52627, will disappear. %C A246022 Then consolidate gaps between the remaining digits into a single comma: %C A246022 1, 4, 6, 10, 12, 1, 516, 18, 202122, 242, 28, 30, 3, 3, 6, ... %H A246022 Manfred Scheucher, <a href="/A246022/b246022.txt">Table of n, a(n) for n = 1..393</a> %H A246022 Manfred Scheucher, <a href="/A246022/a246022.sage.txt">Sage Script</a> %Y A246022 Suggested by A245770, A248804, A247861. Cf. A033307, A007376. %K A246022 nonn,base %O A246022 1,2 %A A246022 _N. J. A. Sloane_, Aug 14 2014 %E A246022 More terms from _Manfred Scheucher_, Jun 05 2015