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 A177418 #21 Sep 01 2025 05:08:41
%S A177418 41,941,9941,99999941,99999999999999999941,
%T A177418 99999999999999999999999999999999999941,
%U A177418 99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999941
%N A177418 Primes of the form 10^k - 59.
%C A177418 The next term (a(8)) has 248 digits. - _Harvey P. Dale_, Dec 29 2011
%H A177418 Jason Yuen, <a href="/A177418/b177418.txt">Table of n, a(n) for n = 1..15</a>
%F A177418 a(n) = 10^A108506(n) - 59. - _Jason Yuen_, Sep 01 2025
%t A177418 Select[10^Range[0,400] - 59,PrimeQ] (* _Harvey P. Dale_, Dec 29 2011 *)
%t A177418 Select[Table[FromDigits[PadLeft[{4,1},n,9]],{n,2,400}],PrimeQ] (* _Harvey P. Dale_, Feb 08 2024 *)
%o A177418 (Magma) [a: n in [2..250] | IsPrime(a) where a is 10^n-59];
%Y A177418 Cf. A108506.
%K A177418 nonn,changed
%O A177418 1,1
%A A177418 _Vincenzo Librandi_, Dec 11 2010