A235155 - OEIS

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A235155

Primes which have one or more occurrences of exactly three different digits.

103, 107, 109, 127, 137, 139, 149, 157, 163, 167, 173, 179, 193, 197, 239, 241, 251, 257, 263, 269, 271, 281, 283, 293, 307, 317, 347, 349, 359, 367, 379, 389, 397, 401, 409, 419, 421, 431, 439, 457, 461, 463, 467, 479, 487, 491, 503, 509, 521, 523, 541, 547

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

The first term having a repeated digit is 1009.

LINKS

Christopher M. Conrey, Table of n, a(n) for n = 1..10000 (first 2000 terms from Colin Barker)

Christopher M. Conrey, MATLAB Program

MATHEMATICA

Select[Prime[Range[200]], Count[DigitCount[#], 0]==7&] (* Harvey P. Dale, Jul 27 2020 *)

PROG

(PARI) s=[]; forprime(n=100, 1000, if(#vecsort(eval(Vec(Str(n))), , 8)==3, s=concat(s, n))); s