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 A260939 #39 Sep 08 2022 08:46:13
%S A260939 4943,65003,125063,185123,245183,305243,365303,425363,485423,545483,
%T A260939 605543,665603,725663
%N A260939 Thirteen primes in arithmetic progression with difference 60060 and minimal initial term.
%C A260939 This sequence is 13 primes long and was discovered by W. N. Seredinsky.
%H A260939 Jens Kruse Andersen, <a href="http://primerecords.dk/aprecords.htm#ap24">All known AP24 to AP26</a>.
%H A260939 Wikipedia, <a href="https://en.wikipedia.org/wiki/Primes_in_arithmetic_progression">Primes in arithmetic progression</a>.
%H A260939 <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).
%F A260939 a(n) = 4943 + (n-1)*60060 = 4943 + (n-1)*2*A002110(6).
%e A260939 a(4) = 4943 + 3*60060 = 185123.
%t A260939 Table[4943 + (n - 1) 60060, {n, 1, 13}] (* _Bruno Berselli_, Aug 10 2015 *)
%o A260939 (Sage) [4943+(n-1)*60060 for n in (1..13)] # _Bruno Berselli_, Aug 10 2015
%o A260939 (Magma) [4943+(n-1)*60060: n in [1..13]]; // _Bruno Berselli_, Aug 10 2015
%o A260939 (PARI) a(n)=60060*n-55117 \\ _Charles R Greathouse IV_, Aug 25 2017
%Y A260939 Cf. A002110, A033290, A113827, A260751.
%K A260939 nonn,fini,full,easy
%O A260939 1,1
%A A260939 _Marco Ripà_, Aug 05 2015