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 A104047 #7 Nov 21 2013 12:48:39 %S A104047 19,67,79,199,547,619,739,1459,1759,3319,3739,4027,4567,5107,5419, %T A104047 6367,7219,8719,9187,9907,10459,10867,11119,12547,13099,14827,15739, %U A104047 16927,17047,18307,21319,25939,27259,27367,31327,33967,37579,38839,38959 %N A104047 Primes p equal to the sum of two successive sexy primes - 1 such that p - 6 is also prime. %F A104047 A104227 INTERSECT A046117. [From _R. J. Mathar_, Nov 26 2008] %t A104047 Select[2#+5&/@Select[Prime[Range[4200]],PrimeQ[#+6]&],And@@PrimeQ[ {#,#-6}]&] (* _Harvey P. Dale_, Feb 28 2012 *) %Y A104047 Cf. A023201, A046117. %K A104047 easy,nonn %O A104047 1,1 %A A104047 _Giovanni Teofilatto_, Mar 31 2005 %E A104047 23 and 29 removed, extended by _R. J. Mathar_, Nov 26 2008