A260270 Primes that contain only the digits (1, 4, 8).

11, 41, 181, 811, 881, 1181, 1481, 1811, 4111, 4441, 4481, 8111, 11411, 14411, 18181, 18481, 41141, 41411, 44111, 48481, 81181, 84181, 84481, 84811, 88411, 88811, 118411, 141181, 141481, 141811, 144481, 148411, 181141, 184111, 184181, 184441, 411841, 418181

Offset

1,1

Comments

A020452 and A020456 are subsequences.

Links

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

Mathematica

Select[Prime[Range[4 10^4]], Complement[IntegerDigits[#], {1, 4, 8}]=={} &]
Table[Select[10#+1&/@(FromDigits/@Tuples[{1, 4, 8}, n]), PrimeQ], {n, 5}]// Flatten (* Harvey P. Dale, Jun 08 2019 *)

Prog

(Magma) [p: p in PrimesUpTo(5*10^5) | Set(Intseq(p)) subset [1, 4, 8]];

Crossrefs

Cf. similar sequences listed in A260266.

Cf. A020452, A020456.

Sequence in context: A199209 A156733 A079304 * A118572 A333084 A201709

Adjacent sequences: A260267 A260268 A260269 * A260271 A260272 A260273

Keyword

nonn,easy,base

Author

Vincenzo Librandi, Jul 23 2015

Status

approved