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 A226977 #25 Nov 26 2014 10:16:42 %S A226977 7,8,11,17,23,29,41,47,59,71,239,359,419,839 %N A226977 Places n where A225867(n) <= 2. %C A226977 Except for a(2)=8, all terms are prime. %C A226977 Is this sequence finite? %C A226977 There are no other terms up to 86000. - _Peter J. C. Moses_, Jun 28 2013 %C A226977 There are no more terms up to 10^9. - _Charles R Greathouse IV_, Nov 25 2014 %o A226977 (PARI) is(n)=for(k=2,n\2-1,if(sumdiv(n+k,d,(n+d)%k==0 && d>1)>2, return(0))); n>6 \\ _Charles R Greathouse IV_, Nov 25 2014 %Y A226977 Cf. A225867, A049002. %K A226977 nonn,more %O A226977 1,1 %A A226977 _Vladimir Shevelev_, Jun 27 2013