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 A222961 #10 Sep 08 2022 08:46:04
%S A222961 1,4,739,82849,163069,330544,511249,534349,623179,730699,958864,
%T A222961 1529434,2077954,2109139,2763499,4172074,5067199,5882524,5950249,
%U A222961 6532159,7860409,7880044,9252184,9368419,9564769,9605719,10024984
%N A222961 Numbers n such that 2*n + {3, 5, 9, 11, 15, 21} are all primes.
%C A222961 After 1, a(n) is congruent to 4 or 9 (mod 10), this means that a(n) is of the form 5k-1. Clearly, each term is not divisible by 3, 7 and 11.
%H A222961 Vincenzo Librandi, <a href="/A222961/b222961.txt">Table of n, a(n) for n = 1..100</a>
%t A222961 Select[Range[7000000], Union[PrimeQ[2 # +{3, 5, 9, 11, 15, 21}]]=={True}&]
%o A222961 (Magma) [n: n in [1..11000000] | forall{2*n+k: k in [3, 5, 9, 11, 15, 21] | IsPrime(2*n+k)}];
%Y A222961 Cf. A136162.
%K A222961 nonn
%O A222961 1,2
%A A222961 _Vincenzo Librandi_, Mar 13 2013