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 A322606 #35 Dec 09 2024 15:40:42
%S A322606 97,9753197,97531975319,97531975319753197,975319753197531975319
%N A322606 Primes of form 9753197531... .
%C A322606 The next term is too large to include.
%C A322606 The next term has 127 digits and there are no additional terms up to 2000 digits. - _Harvey P. Dale_, Jul 13 2021
%H A322606 Seiichi Manyama, <a href="/A322606/b322606.txt">Table of n, a(n) for n = 1..6</a>
%t A322606 Select[Table[FromDigits[PadRight[{},n,{9,7,5,3,1}]],{n,30}],PrimeQ] (* _Harvey P. Dale_, Jul 13 2021 *)
%o A322606 (PARI) for(n=2,1e3, if(isprime(t=10^n*97531\99999), print1(t", "))) \\ _Charles R Greathouse IV_, Dec 09 2024
%Y A322606 Subsequence of A030096.
%Y A322606 Cf. A322517.
%K A322606 nonn,base
%O A322606 1,1
%A A322606 _Seiichi Manyama_, Dec 20 2018