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 A276607 #5 Sep 15 2016 12:22:52 %S A276607 4,8,10,20,16,24,38,20,34,40,36,22,34,52,52,42,44,48,48,54,24,64,74, %T A276607 58,40,22,64,46,90,58,66,56,88,46,40,16,114,134,32,86,24,54,68,28,56, %U A276607 58,86,88,108,52,56,132,64,60,148,28,58,56,120,44,38,152,72,56,92,98,96,38,56,88,38,46,92,180,40,80,54,126 %N A276607 Column 1 of A276620: a(n) = A276606(n) - A260723(1+n). %H A276607 Antti Karttunen, <a href="/A276607/b276607.txt">Table of n, a(n) for n = 1..4096</a> %H A276607 <a href="/index/Si#sieve">Index entries for sequences generated by sieves</a> %F A276607 a(n) = A276606(n) - A260723(1+n). %o A276607 (Scheme) (define (A276607 n) (- (A276606 n) (A260723 (+ 1 n)))) %Y A276607 Column 1 of A276620. %Y A276607 Cf. A276608 (terms divided by 2). %Y A276607 Cf. A276606, A260723. %K A276607 nonn %O A276607 1,1 %A A276607 _Antti Karttunen_, Sep 13 2016