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 A319423 #15 Oct 10 2018 09:14:06 %S A319423 1,2,4,5,9,10,18,20,21,37,41,42,74,82,84,85,149,165,169,170,298,330, %T A319423 338,340,341,597,661,677,681,682,1194,1322,1354,1362,1364,1365,2389, %U A319423 2645,2709,2725,2729,2730,4778,5290,5418,5450,5458,5460,5461,9557 %N A319423 Indices of records in A175046. %C A319423 a(n) in binary is either an alternating string of 1's and 0's, or exactly one of the 0's is replaced by 00 (see paper in links). - _Chai Wah Wu_, Oct 04 2018 %H A319423 Chai Wah Wu, <a href="/A319423/b319423.txt">Table of n, a(n) for n = 1..10099</a> %H A319423 Chai Wah Wu, <a href="https://arxiv.org/abs/1810.02293">Record values in appending and prepending bitstrings to runs of binary digits</a>, arXiv:1810.02293 [math.NT], 2018 %Y A319423 Cf. A086638, A175046, A319422, A319424. %K A319423 nonn %O A319423 1,2 %A A319423 _N. J. A. Sloane_, Sep 23 2018