A386091 Primes having only {1, 2, 4, 5} as digits.

2, 5, 11, 41, 151, 211, 241, 251, 421, 521, 541, 1151, 1451, 1511, 2111, 2141, 2221, 2251, 2411, 2441, 2521, 2551, 4111, 4211, 4241, 4421, 4441, 4451, 5441, 5521, 11251, 11411, 11551, 12211, 12241, 12251, 12421, 12451, 12511, 12541, 14221, 14251, 14411, 14551

Offset: 1

Author

Jason Bard, Jul 16 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 A260267, A260268, A385773.

Cf. A000040, A030430, A385776.

Programs

Magma

[p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 2, 4, 5]];

Mathematica

Flatten[Table[Select[FromDigits /@ Tuples[{1, 2, 4, 5}, n], PrimeQ], {n, 7}]]

PARI

primes_with(, 1, [1, 2, 4, 5]) \\ uses function in A385776

Python

print(list(islice(primes_with("1245"), 41))) # uses function/imports in A385776