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 A138122 #7 Oct 08 2013 02:40:25
%S A138122 7,11,37,41,67,71,97,101,127,131,277,281,307,311,397,401,457,461,487,
%T A138122 491,757,761,877,881,907,911,937,941,967,971,1087,1091,1297,1301,1447,
%U A138122 1451,1567,1571,1597,1601,1867,1871,2137,2141,2347,2351,2377,2381,2437
%N A138122 Cousin primes, the lower of which is 7 (mod 10).
%C A138122 Start from the intersection of A023200 and A030432, then add the associated members of A046132. The last digits are obviously periodic as A010688. - _R. J. Mathar_, Nov 26 2008
%H A138122 Vincenzo Librandi, <a href="/A138122/b138122.txt">Table of n, a(n) for n = 1..1000</a>
%t A138122 a[0] = 7; a[n_] := a[n] = a[n - 1] + 10; Flatten[Table[If[PrimeQ[a[n]] && PrimeQ[a[n] + 4], {a[n],a[n] + 4}, {}], {n, 0, 1000}]]
%Y A138122 Cf. A132243, A132242, A076746.
%K A138122 nonn
%O A138122 1,1
%A A138122 _Roger L. Bagula_, May 04 2008
%E A138122 Replaced Mathematica definition by humanly readable phrase. - _R. J. Mathar_, Nov 26 2008