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 A069593 #8 Jun 23 2024 22:07:59
%S A069593 19,97,907,9001,90001,900001,9000011,90000049,900000011,9000000001,
%T A069593 90000000019,900000000013,9000000000059,90000000000077,
%U A069593 900000000000019,9000000000000007,90000000000000011,900000000000000017
%N A069593 Smallest prime in which the n-th significant digit is a 9.
%p A069593 19,seq(nextprime(9*10^j),j=1..32);
%t A069593 Join[{19}, NextPrime[9*10^Range[20]]] (* _Paolo Xausa_, Jun 23 2024 *)
%Y A069593 Cf. A069588, A069589, A069590, A069591, A069592.
%K A069593 base,nonn
%O A069593 1,1
%A A069593 _Amarnath Murthy_, Mar 25 2002
%E A069593 More terms from _Sascha Kurz_, Mar 28 2002