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 A261103 #5 Sep 24 2015 11:30:22 %S A261103 0,1,3,7,11,9,13,15,19,19,25,27,27,33,37,47,43,49,49,55,57,56,58,58, %T A261103 71,75,83,23,25,31,35,37,49,51,49,53,57,61,65,63,77,75,79,85,87,87,91, %U A261103 91,99,109,109,115,117,117,123,127,127,133,139,141,141,143,149,147,159,151,157,165,167,179,187,193,205,211,213,209,215,213,75 %N A261103 a(n) = A259934(n) - A261089(n). %H A261103 Antti Karttunen, <a href="/A261103/b261103.txt">Table of n, a(n) for n = 0..10000</a> %F A261103 a(n) = A259934(n) - A261089(n). %o A261103 (Scheme) (define (A261103 n) (- (A259934 n) (A261089 n))) %Y A261103 Cf. A155043, A259934, A261089. %K A261103 nonn %O A261103 0,3 %A A261103 _Antti Karttunen_, Sep 23 2015