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 A031378 #17 Sep 08 2022 08:44:50 %S A031378 3,13,29,43,61,79,101,113,139,163,181,199,229,251,271,293,317,349,373, %T A031378 397,421,443,463,491,521,557,577,601,619,647,673,701,733,757,787,821, %U A031378 839,863,887,929,953,983,1013,1033,1061,1091,1109,1151,1181 %N A031378 a(n) = prime(4*n - 2). %C A031378 A subsequence (more precisely, every other term) of A031215, subsequence of A007821 which is the complement of A006450 in the primes A000040. - _M. F. Hasler_, Oct 19 2013 %H A031378 Ivan Panchenko, <a href="/A031378/b031378.txt">Table of n, a(n) for n = 1..1000</a> %F A031378 A031378(n) = A031215(2n-1) = A000040(2(2n-1)). - _M. F. Hasler_, Oct 19 2013 %t A031378 Prime[4*Range[50]-2] (* _Harvey P. Dale_, Jun 03 2014 *) %o A031378 (Magma) [ NthPrime(4*n-2): n in [1..1000] ]; // _Vincenzo Librandi_, Apr 11 2011 %o A031378 (PARI) A031378=n->prime(n*4-2) \\ _M. F. Hasler_, Oct 19 2013 %K A031378 nonn %O A031378 1,1 %A A031378 _Jeff Burch_