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 A031919 #17 Sep 08 2022 08:44:50 %S A031919 3,37,79,131,181,239,293,359,421,479,557,613,673,743,821,881,953,1021, %T A031919 1091,1163,1231,1301,1399,1459,1531,1601,1667,1747,1831,1907,1997, %U A031919 2069,2137,2237,2297,2377,2441,2543,2633,2693,2753,2837,2917 %N A031919 a(n) = prime(10*n-8). %H A031919 Ivan Panchenko, <a href="/A031919/b031919.txt">Table of n, a(n) for n = 1..1000</a> %F A031919 a(n) = A000040(A017293(n-1)). - _Michel Marcus_, May 04 2020 %o A031919 (Magma) [ &+[(NthPrime(10*n-8))]: n in [1..1000] ]; // _Vincenzo Librandi_, Apr 08 2011 %o A031919 (PARI) a(n) = prime(10*n-8); \\ _Michel Marcus_, May 04 2020 %Y A031919 Cf. A000040, A017293. %K A031919 nonn %O A031919 1,1 %A A031919 _Jeff Burch_