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 A120227 #17 Sep 27 2024 05:41:05
%S A120227 2,6,8,12,14,26,36,38,42,48,54,56,62,66,84,92,98,104,108,126,132,152,
%T A120227 162,176,188,194,206,218,234,236,246,258,264,272,276,302,306,344,348,
%U A120227 362,374,416,426,428,444,456,462,474,482,504,518,542,558,572,594,602
%N A120227 Numbers k such that 5+k and 5*k+1 are prime.
%C A120227 This sequence is infinite under Dickson's conjecture. - _Charles R Greathouse IV_, Apr 16 2012
%H A120227 Harvey P. Dale, <a href="/A120227/b120227.txt">Table of n, a(n) for n = 1..1000</a>
%t A120227 Select[Range[700],And@@PrimeQ[{#+5,5#+1}]&] (* _Harvey P. Dale_, Dec 18 2011 *)
%Y A120227 Cf. A092945, A106057, A085063, A120223, A120224, A120225, A120226.
%K A120227 nonn
%O A120227 1,1
%A A120227 _Zak Seidov_, Jun 10 2006