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A231412 Count of the first 10^n primes which do not contain the digit 0. 20

%I #26 Mar 19 2024 12:29:39

%S 1,10,91,819,7122,61702,557224,5062320,45002763,395879190,3579400605,

%T 32487367715,294505958253

%N Count of the first 10^n primes which do not contain the digit 0.

%F a(n) <= 9^n. - _Charles R Greathouse IV_, May 21 2014

%e a(2) = 91 = 100-9 since only 9 primes less than 541 (the 100th prime) contain a zero. Namely: 101, 103, 107, 109, 307, 401, 409, 503, 509.

%t Table[Length[Select[Range[10^n], DigitCount[Prime[#], 10, 0] == 0 &]], {n, 0, 5}] (* _Robert Price_, Mar 23 2020 *)

%Y Cf. A231412, A228413-A228421, A097952, A091634-A091643.

%K nonn,base,more,hard

%O 0,2

%A _Robert Price_, Nov 08 2013

%E a(12) from _Lucas A. Brown_, Mar 19 2024

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Last modified April 16 08:27 EDT 2024. Contains 371698 sequences. (Running on oeis4.)