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 A276347 #9 Sep 12 2016 17:01:54 %S A276347 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,20,21,22,23,24,26,27,28, %T A276347 29,30,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,50,51,52,53, %U A276347 54,56,57,58,60,61,62,63,64,65,66,67,68,69,70,71,72,74,75,76,78,80,81,82,83,84,86,87,88,89,90,92,93,94,95 %N A276347 Numbers n for which A020639(n) = A272565(n). %H A276347 Antti Karttunen, <a href="/A276347/b276347.txt">Table of n, a(n) for n = 1..10000</a> %H A276347 <a href="/index/Si#sieve">Index entries for sequences generated by sieves</a> %o A276347 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A276347 (define A276347 (ZERO-POS 1 1 (lambda (n) (- (A272565 n) (A020639 n))))) %Y A276347 Cf. A020639, A272565. %Y A276347 Complement: A276437. %Y A276347 Subsequence of A276568. %Y A276347 Subsequences: A047229 (after the initial zero), A192503. %K A276347 nonn %O A276347 1,2 %A A276347 _Antti Karttunen_, Sep 11 2016