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 A347265 #22 Aug 28 2021 06:44:33 %S A347265 1,4,2,3,10,5,16,8,6,7,22,11,34,17,52,26,13,40,20,9,28,14,12,15,46,23, %T A347265 70,35,106,53,160,80,18,19,58,29,88,44,21,64,32,24,25,76,38,27,82,41, %U A347265 124,62,31,94,47,142,71,214,107,322,161,484,242,121,364,182 %N A347265 Positive integers in the order of their first appearance in the 3x+1 sequences. %C A347265 The positive integers in the order of their first appearance in the rows of the square array A347270. %C A347265 The first 8 terms of A263716 appear here in a different order. %H A347265 <a href="/index/3#3x1">Index entries for sequences related to 3x+1 (or Collatz) problem</a> %F A347265 a(n) = A263716(n), n >= 8. %Y A347265 Cf. A000027, A006370, A347270. Another version of A263716. %K A347265 nonn %O A347265 0,2 %A A347265 _Omar E. Pol_, Aug 27 2021