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 A031377 #15 Sep 08 2022 08:44:50 %S A031377 2,7,17,29,41,53,67,79,97,107,127,139,157,173,191,199,227,239,257,271, %T A031377 283,311,331,349,367,383,401,421,439,457,467,491,509,541,563,577,599, %U A031377 613,631,647,661,683,709,733,751,769,797,821,829,857,877 %N A031377 a(n) = prime(3n-2). %H A031377 Ivan Panchenko, <a href="/A031377/b031377.txt">Table of n, a(n) for n = 1..1000</a> %t A031377 Prime[3*Range[70]-2] (* _Harvey P. Dale_, Mar 23 2012 *) %o A031377 (Magma) [ NthPrime(3*n-2): n in [1..1000] ]; // _Vincenzo Librandi_, Apr 11 2011 %K A031377 nonn %O A031377 1,1 %A A031377 _Jeff Burch_