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 A144793 #7 Apr 07 2020 23:08:42 %S A144793 2,5,10,11,12,13,18,20,21,22,23,26,29,34,37,38,40,41,42,43,44,45,46, %T A144793 47,50,51,52,53,56,58,61,66,69,70,74,75,77,78,80,81,82,83,84,85,86,87, %U A144793 88,89,90,91,92,93,94,95,98,101,103,104,105,106,107,109,114,115,116,117 %N A144793 Consider the runs of 0's in the binary representation of n, each of these runs being on the edge of the binary representation n and/or being bounded by 1's. Consider also the runs of 1's in the binary representation of n, each of these runs being on the edge of the binary representation n and/or being bounded by 0's. A positive integer n is included in this sequence if the length of the shortest such run of 0's in binary n equals the length of the shortest such run of 1's in binary n. %C A144793 This sequence contains those positive integers m where A144789(m) = A144790(m). %e A144793 1564 in binary is 11000011100. The runs of 0's are like this: 11(0000)111(00). The runs of 1's are like this: (11)0000(111)00. The shortest run of 0's contains two 0's. The shortest run of 1's contains two 1's. Since both the shortest run of 0's and the shortest run of 1's are of the same length, 1564 is included in this sequence. %Y A144793 Cf. A090050, A144789, A144790. %K A144793 base,nonn %O A144793 1,1 %A A144793 _Leroy Quet_, Sep 21 2008, Oct 07 2008 %E A144793 Extended by _Ray Chandler_, Nov 04 2008