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 A247682 #23 Feb 21 2016 09:41:51 %S A247682 77,95,185,203,221,275,329,365,437,455,473,527,545,581,635,671,689, %T A247682 707,725,779,815,833,851,869,905,923,959,995,1067,1085,1121,1139,1157, %U A247682 1175,1211,1247,1265,1337,1355,1391,1445,1463,1517,1535,1589 %N A247682 Odd composite numbers congruent to 5 modulo 9. %C A247682 Subsequence of A017221 (9n + 5). %H A247682 Odimar Fabeny, <a href="/A247682/b247682.txt">Table of n, a(n) for n = 1..10000</a> %t A247682 Select[18Range[100] + 5, Not[PrimeQ[#]] &] (* _Alonso del Arte_, Sep 25 2014 *) %t A247682 Select[Range[5,2000,18],CompositeQ] (* _Harvey P. Dale_, Feb 21 2016 *) %o A247682 (PARI) lista(nn) = {forcomposite(n=1, nn, if ((n % 2) && ((n % 9) == 5), print1(n, ", ")); ); } \\ _Michel Marcus_, Sep 22 2014 %Y A247682 Cf. A017221, A247676, A247678, A247679, A247681, A247683. %K A247682 nonn,easy %O A247682 1,1 %A A247682 _Odimar Fabeny_, Sep 22 2014