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 A176003 #17 Aug 02 2023 20:39:14
%S A176003 1,4,7,13,19,31,37,49,55,67,85,91,109,121,127,139,157,175,181,199,211,
%T A176003 217,235,247,265,289,301,307,319,325,337,379,391,409,415,445,451,469,
%U A176003 487,499,517,535,541,571,577,589,595,631,667,679,685,697,715,721,751
%N A176003 a(n) = 3*(n-th noncomposite number) - 2.
%H A176003 Michael De Vlieger, <a href="/A176003/b176003.txt">Table of n, a(n) for n = 1..10000</a>
%H A176003 Barry Brent, <a href="https://arxiv.org/abs/2212.12515">On the constant terms of certain meromorphic modular forms for Hecke groups</a>, arXiv:2212.12515 [math.NT], 2022.
%H A176003 Barry Brent, <a href="https://doi.org/10.20944/preprints202306.1164.v6">On the Constant Terms of Certain Laurent Series</a>, Preprints (2023) 2023061164.
%F A176003 a(n) = 3*A008578(n) - 2. - _R. J. Mathar_, Apr 16 2010
%t A176003 Join[{1}, Table[3 Prime[n] - 2, {n, 60}]] (* _Vincenzo Librandi_, Dec 08 2015 *)
%o A176003 (Magma) [3*NthPrime(n)-2: n in [0..58]]; // _Vincenzo Librandi_, Dec 08 2015
%Y A176003 Cf. A001748, A008578.
%K A176003 nonn
%O A176003 1,2
%A A176003 _Juri-Stepan Gerasimov_, Apr 11 2010
%E A176003 Entries checked by _R. J. Mathar_, Apr 16 2010