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 A231726 #11 May 21 2014 17:09:31
%S A231726 0,9,181,2878,38298,442776,4937680,54997237,604120810,6420599395,
%T A231726 67512632285
%N A231726 Count of the first 10^n primes containing at least one 0's digit.
%F A231726 a(n) ~ 10^n. - _Charles R Greathouse IV_, May 21 2014
%e A231726 a(2)=9 because there are 9 primes not greater than 547 (the 100th prime) that contain a zero digit. Namely: 101, 103, 107, 109, 307, 401, 409, 503, 509.
%t A231726 cnt = 0; Table[Do[p = Prime[k]; If[MemberQ[IntegerDigits[p], 0], cnt++], {k, 10^(n - 1) + 1, 10^n}]; cnt, {n, 5}] (* _T. D. Noe_, Nov 13 2013 *)
%Y A231726 Cf. A231726-A231790, A231792-A231796, A091634-A091643, A231412, A228413-A228421.
%K A231726 more,nonn,base
%O A231726 1,2
%A A231726 _Robert Price_, Nov 12 2013