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 A144723 #4 Jun 02 2025 00:35:55
%S A144723 7,19,73,433,3457,72577,1669249,43400449,1302013441,46872483841,
%T A144723 1734281902081,67636994181121,2840753755607041,153400702802780161,
%U A144723 8743840059758469121,638300324362368245761,52978926922076564398081
%N A144723 a(n)= primes arising A144722.
%t A144723 k = 3; a = {}; Do[If[PrimeQ[k n + 1], AppendTo[a, k n+1 ]; k = k n ], {n, 1, 3000}]; a (*Artur Jasinski*)
%Y A144723 A046966, A046972, A144717, A144718, A144722, A144723, A144724, A144725, A144726, A144727, A144728, A144729, A144730, A144731
%K A144723 nonn
%O A144723 1,1
%A A144723 _Artur Jasinski_, Sep 19 2008