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 A253789 #10 Jan 18 2015 19:05:21 %S A253789 1,2,3,4,5,6,8,10,12,16,20,24,32,40,48,64,80,96,128,160,192,256,320, %T A253789 384,481,512,640,768,962,1024,1280,1536,1924,2048,2560,3072,3848,4096, %U A253789 5120,6144,7696,8192,10240,12288,15392,16384,20480,24576 %N A253789 Fixed points of f(n) = A252753(n-1). %o A253789 (Scheme, with _Antti Karttunen_'s IntSeq-library, two alternative versions) %o A253789 (define A253789 (FIXED-POINTS 1 1 (COMPOSE A252753 -1+))) %o A253789 (define A253789 (FIXED-POINTS 1 1 (COMPOSE 1+ A252754))) %Y A253789 Cf. A252753. %Y A253789 Also fixed points of f(n) = A252754(n)+1. %Y A253789 Differs from a subsequence A029747 for the first time at n=25, where a(25) = 481, while A029747 contains no odd terms after 1, 3 and 5. %Y A253789 No other odd numbers can occur than those listed at A253790. %K A253789 nonn %O A253789 1,2 %A A253789 _Antti Karttunen_, Jan 13 2015