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 A323827 #7 Nov 11 2020 08:59:22 %S A323827 1,2,2,2,2,1,1,2,1,1,1,1,1,2,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1, %T A323827 1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1, %U A323827 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 %N A323827 Apply Lenormand's "raboter" operation to A306211. %C A323827 The operation shortens each run of consecutive equal terms by one term (runs of length 1 vanish). %H A323827 Rémy Sigrist, <a href="/A323827/b323827.txt">Table of n, a(n) for n = 1..16502</a> %H A323827 Claude Lenormand, <a href="/A318921/a318921.pdf">Deux transformations sur les mots</a>, Preprint, 5 pages, Nov 17 2003. Apparently unpublished. This is a scanned copy of the version that the author sent to me in 2003. %H A323827 Rémy Sigrist, <a href="/A323827/a323827.gp.txt">PARI program for A323827</a> %o A323827 (PARI) See Links section. %Y A323827 Cf. A306211, A318921. %K A323827 nonn %O A323827 1,2 %A A323827 _N. J. A. Sloane_, Feb 01 2019 %E A323827 More terms from _Rémy Sigrist_, Nov 11 2020