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 A105271 #21 Apr 23 2020 02:52:49 %S A105271 0,1,4,6,17,21,25,29,1024,1032,1040,1048,1056,1064,1072,1080,1088, %T A105271 1096,1104,1112,1120,1128,1136,1144,1152,1160,1168,1176,1184,1192, %U A105271 1200,1208,1216,1224,1232,1240,1248,1256,1264,1272,1280,1288,1296,1304,1312,1320 %N A105271 Fixed points of the permutation of the nonnegative integers defined by A105025 (i.e., n such that A105025(n) = n). %H A105271 Reinhard Zumkeller, <a href="/A105271/b105271.txt">Table of n, a(n) for n = 1..1000</a> %H A105271 David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [<a href="http://neilsloane.com/doc/slopey.pdf">pdf</a>, <a href="http://neilsloane.com/doc/slopey.ps">ps</a>]. %H A105271 David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL8/Sloane/sloane300.html">Sloping binary numbers: a new sequence related to the binary numbers</a>, J. Integer Seq. 8 (2005), no. 3, Article 05.3.6, 15 pp. %o A105271 (Haskell) %o A105271 a105271 n = a105271_list !! (n-1) %o A105271 a105271_list = [x | x <- [0..], a105025 x == x] %o A105271 -- _Reinhard Zumkeller_, Jul 21 2012 %Y A105271 Cf. A105025. %Y A105271 Cf. A214417, A214414, A214433, A104235. %K A105271 nonn %O A105271 1,3 %A A105271 _Emeric Deutsch_, Apr 16 2005 %E A105271 More terms from _John W. Layman_, Jun 03 2005 %E A105271 Offset corrected by _Reinhard Zumkeller_, Jul 21 2012