A260378 - OEIS

A260378

Primes that contain only the digits (0, 3, 7).

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

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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: A363667 A260382 A260381 * A020463 A356668 A057625

Adjacent sequences: A260375 A260376 A260377 * A260379 A260380 A260381

KEYWORD

nonn,easy,base

AUTHOR

Vincenzo Librandi, Jul 24 2015

STATUS

approved