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 A225943 #18 Jun 14 2013 09:55:16 %S A225943 17,29,71,101,659,1091,1301,2081,2111,2381,2591,2969,4241,4271,4649, %T A225943 4721,4931,5441,5519,6689,6761,7589,8219,8999,10331,10859,11159,11717, %U A225943 11969,13001,16451,17657,18521,20231,22277,23039,23909,24179,24917,27479,28571 %N A225943 The first member of a twin prime pair whose sum equals the sums of two consecutive smaller pairs of twin primes. %C A225943 The sum of a given pair of twin primes can be represented as the sum of consecutive pairs of smaller twin primes. %H A225943 Zak Seidov, <a href="/A225943/b225943.txt">Table of n, a(n) for n = 1..1000</a> %e A225943 17 + 19 = (5 + 7) + (11 + 13). %t A225943 t = Select[2*Range[20000], PrimeQ[# - 1] && PrimeQ[# + 1] &]; Intersection[t, Rest[t] + Most[t]] - 1 (* _T. D. Noe_, Jun 13 2013 *) %K A225943 nonn %O A225943 1,1 %A A225943 _César Aguilera_, May 21 2013 %E A225943 Extended by _T. D. Noe_, Jun 13 2013