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 A276603 #6 Sep 12 2016 17:02:47 %S A276603 0,1,2,4,5,6,8,10,13,14,15,17,19,21,23,26,28,31,34,36,40,41,42,44,46, %T A276603 48,50,53,55,58,61,63,67,70,72,76,80,82,85,88,90,94,97,99,102,106,108, %U A276603 112,116,121,122,123,125,127,129,131,134,136,139,142,144,148,151,153,157,161,163,166,169,171,175,178,180,183,187,189,193,197 %N A276603 The infinite trunk of ternary beanstalk, terms divided by 2: a(n) = A276623(n) / 2. %H A276603 Antti Karttunen, <a href="/A276603/b276603.txt">Table of n, a(n) for n = 0..6250</a> %F A276603 a(n) = A276623(n) / 2. %o A276603 (Scheme) (define (A276603 n) (/ (A276623 n) 2)) %Y A276603 Cf. A276623, A276605 (first differences). %K A276603 nonn,base %O A276603 0,3 %A A276603 _Antti Karttunen_, Sep 11 2016