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 A269738 #9 Mar 17 2016 05:57:44 %S A269738 1,41253,41254,41308,41349,41356,41362,41365,41522,41535,41536,41551, %T A269738 41552,41577,41718,41723,121658,121703,121708,121729,121762,121765, %U A269738 121810,121811,121816,121817,121828,121829,121836,121845,121852,121853,121870,121884,121887,121890,121971,129624,129676 %N A269738 Index in A092243 where -n first appears. %C A269738 Although there may not yet be a proof that every positive or negative integer appears in A092243, it seems likely that this will be true. %H A269738 Chai Wah Wu, <a href="/A269738/b269738.txt">Table of n, a(n) for n = 0..10000</a> %Y A269738 Cf. A079054, A092243, A269739. %K A269738 nonn %O A269738 0,2 %A A269738 _N. J. A. Sloane_, Mar 13 2016