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A260378 Primes that contain only the digits (0, 3, 7). 6
3, 7, 37, 73, 307, 337, 373, 733, 773, 3037, 3307, 3373, 3733, 7307, 7333, 7703, 30307, 30703, 30707, 30773, 33037, 33073, 33377, 33703, 33773, 37003, 37307, 37337, 70003, 70373, 73037, 73303, 77003, 77377, 77773, 300007, 300073, 300733, 303007, 303073, 303307 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A020463 is a subsequence.

LINKS

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

MATHEMATICA

Select[Prime[Range[4 10^4]], Complement[IntegerDigits[#], {0, 3, 7}]=={} &]

PROG

(MAGMA) [p: p in PrimesUpTo(5*10^5) | Set(Intseq(p)) subset [0, 3, 7]];

CROSSREFS

Cf. Primes that contain only the digits (k,3,7): this sequence (k=0), A260379 (k=1), A214704 (k=2), A199347 (k=4), A087363 (k=5), A260380 (k=6), A260381 (k=8), A260382 (k=9).

Subsequence of A155055.

Cf. A000040, A020463.

Sequence in context: A260380 A260382 A260381 * A020463 A057625 A308392

Adjacent sequences:  A260375 A260376 A260377 * A260379 A260380 A260381

KEYWORD

nonn,easy,base

AUTHOR

Vincenzo Librandi, Jul 24 2015

STATUS

approved

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Last modified July 21 04:40 EDT 2019. Contains 325189 sequences. (Running on oeis4.)