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 A271928 #6 May 06 2016 05:47:35 %S A271928 1,3,4,5,6,7,8,9,10,12,13,15,16,29,30,44,45,50,56,57,72,73,74,84,93, %T A271928 95,108,109,113,116,117,123,126,127,128,129,144,145,146,157,158,159, %U A271928 160,161,162,165,166,179,191,215,223,271,272,275,276,286,287,289,290,296 %N A271928 Positions of records in A268868. %H A271928 R. J. Mathar, <a href="/A271928/b271928.txt">Table of n, a(n) for n = 1..145</a> %Y A271928 Cf. A268868, A271927. %K A271928 nonn %O A271928 1,2 %A A271928 _N. J. A. Sloane_, May 04 2016