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 A031375 #16 Dec 28 2023 23:35:13 %S A031375 19,59,101,149,193,241,293,353,409,461,521,587,641,691,757,823,881, %T A031375 947,1013,1063,1123,1201,1277,1319,1423,1471,1531,1597,1657,1723,1789, %U A031375 1873,1949,2011,2083,2141,2237,2293,2357,2417,2503,2591,2663 %N A031375 a(n) = prime(9n-1). %H A031375 Ivan Panchenko, <a href="/A031375/b031375.txt">Table of n, a(n) for n = 1..1000</a> %t A031375 Prime[9*Range[50]-1] (* _Harvey P. Dale_, Aug 19 2020 *) %o A031375 (Magma) [ NthPrime(9*n-1): n in [1..1000] ]; // _Vincenzo Librandi_, Apr 08 2011 %Y A031375 Cf. A000040, A017257. %K A031375 nonn %O A031375 1,1 %A A031375 _Jeff Burch_