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URL: https://oeis.org/A260891

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A260891

Primes having only {1, 6, 7} as digits.

9

7, 11, 17, 61, 67, 71, 167, 617, 661, 677, 761, 1117, 1171, 1667, 1777, 6661, 6761, 7177, 7717, 11117, 11161, 11171, 11177, 11617, 11677, 11717, 11777, 16111, 16661, 17117, 17167, 17761, 61667, 61717, 66161, 66617, 67777, 71161, 71167, 71171, 71671, 71711, 71761

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

A020454, A020455 and A020469 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[2 10^4]], Complement[IntegerDigits[#], {1, 6, 7}] == {} &]

PROG

(Magma) [p: p in PrimesUpTo(2*10^5) | Set(Intseq(p)) subset [1, 6, 7]];

CROSSREFS

Cf. similar sequences listed in A260889.

Cf. A000040, A020454, A020455, A020469.

Sequence in context: A167513 A386035 A386135 * A276039 A386038 A199327

Adjacent sequences: A260888 A260889 A260890 * A260892 A260893 A260894

KEYWORD

nonn,easy,base

AUTHOR

Vincenzo Librandi, Aug 05 2015

STATUS

approved