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