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 A370011 #8 Feb 16 2024 15:08:39
%S A370011 11,13,23,29,47,53,71,79,97,127,127,149,167,173,191,223,239,251,269,
%T A370011 293,293,317,337,359,389,409,419,431,439,457,509,541,557,557,599,607,
%U A370011 631,653,673,701,719,727,769,773,797,797,853,907,911,919,937,967,967
%N A370011 a(n) is the least prime greater than 4*prime(n).
%e A370011 7 < 4*2 < 11 < 4*3 < 13 < 17 < 19 < 4*5 < 23, so (a(1), a(2), a(3)) = (11,13,23).
%t A370011 Table[NextPrime[Prime[PrimePi[4*Prime[n]]]], {n, 1, 200}]
%o A370011 (PARI) a(n) = nextprime(4*prime(n)); \\ _Michel Marcus_, Feb 10 2024
%Y A370011 Cf. A000040, A001749, A059786, A059788, A370008, A370010.
%K A370011 nonn
%O A370011 1,1
%A A370011 _Clark Kimberling_, Feb 09 2024