A386101 Primes having only {1, 2, 6, 9} as digits.

2, 11, 19, 29, 61, 191, 199, 211, 229, 269, 619, 661, 691, 911, 919, 929, 991, 1129, 1229, 1291, 1619, 1621, 1669, 1699, 1999, 2111, 2129, 2161, 2221, 2269, 2621, 2699, 2969, 2999, 6121, 6199, 6211, 6221, 6229, 6269, 6299, 6619, 6661, 6691, 6911, 6961, 6991, 9161

Offset: 1

Author

Jason Bard, Jul 17 2025

Keywords

• nonn
• base
• easy

Links

• Jason Bard, Table of n, a(n) for n = 1..10000
• Index to entries for primes with digits in a given set

Crossrefs

Supersequence of A363023, A385774, A385776, A385788.

Cf. A000040, A385776.

Programs

Magma

[p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 2, 6, 9]];

Mathematica

Flatten[Table[Select[FromDigits /@ Tuples[{1, 2, 6, 9}, n], PrimeQ], {n, 7}]]

PARI

primes_with(, 1, [1, 2, 6, 9]) \\ uses function in A385776

Python

print(list(islice(primes_with("1269"), 41))) # uses function/imports in A385776