%I
%S 3,23,303,3503,44448,487900,5289359,57794031,658775109,7212208422,
%T 77028673251
%N Count of the first 10^n primes containing at least one 2's digit.
%F a(n) ~ 10^n.  _Charles R Greathouse IV_, May 21 2014
%e a(1)=3 because there are 3 primes not greater than 29 (the 10th prime) that contain a 2's digit. Namely: 2, 23, 29.
%t cnt = 0; Table[Do[p = Prime[k]; If[MemberQ[IntegerDigits[p], 2], cnt++], {k, 10^(n  1) + 1, 10^n}]; cnt, {n, 5}] (* _T. D. Noe_, Nov 13 2013 *)
%Y Cf. A231726A231790, A231792A231796, A091634A091643, A231412, A228413A228421.
%K more,nonn,base
%O 1,1
%A _Robert Price_, Nov 13 2013
