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A261267 Primes that contain only the digits (0, 2, 7). 2
2, 7, 227, 277, 727, 2027, 2207, 2707, 2777, 7027, 7207, 7727, 20707, 22027, 22277, 22727, 22777, 27077, 27277, 70207, 72077, 72227, 72277, 72707, 72727, 200227, 202277, 202777, 207227, 222007, 222707, 227027, 227207, 227707, 272227, 272777, 277007 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A020459 is a subsequence.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Prime[Range[6 10^4]], Complement[IntegerDigits[#], {0, 2, 7}] == {}&]

PROG

(MAGMA) [p: p in PrimesUpTo(2*10^6) | Set(Intseq(p)) subset [0, 2, 7]];

CROSSREFS

Cf. Primes that contain only the digits (0,2,k): A036953 (k=1), A260125 (k=3), this sequence (k=7), A261268 (k=9).

Cf. A000040, A020459.

Sequence in context: A181864 A096463 A048560 * A020459 A088106 A294827

Adjacent sequences:  A261264 A261265 A261266 * A261268 A261269 A261270

KEYWORD

nonn,easy,base

AUTHOR

Vincenzo Librandi, Aug 13 2015

STATUS

approved

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Last modified August 14 07:04 EDT 2020. Contains 336477 sequences. (Running on oeis4.)