A260128 Primes having only {2, 3, 9} as digits.

2, 3, 23, 29, 223, 229, 233, 239, 293, 929, 2239, 2293, 2333, 2339, 2393, 2399, 2939, 2999, 3229, 3299, 3323, 3329, 3923, 3929, 9239, 9293, 9323, 9923, 9929, 22229, 22993, 23293, 23333, 23339, 23399, 23929, 23993, 29333, 29339, 29399, 32233, 32299, 32323

Offset

1,1

Comments

A020458 and A020460 are subsequences.

Links

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

Index to entries for primes with digits in a given set

Mathematica

Select[Prime[Range[4 10^3]], Complement[IntegerDigits[#], {2, 3, 9}]=={} &]
Select[FromDigits/@Flatten[Table[Tuples[{2, 3, 9}, n], {n, 5}], 1], PrimeQ] (* Harvey P. Dale, Apr 15 2025 *)

Prog

(Magma) [p: p in PrimesUpTo(300000) | Set(Intseq(p)) subset [2, 3, 9]];

Crossrefs

Cf. similar sequences listed in A260125.

Cf. A020458, A020460.

Sequence in context: A386152 A386149 A386046 * A220569 A328940 A024764

Adjacent sequences: A260125 A260126 A260127 * A260129 A260130 A260131

Keyword

nonn,easy,base

Author

Vincenzo Librandi, Jul 17 2015

Status

approved