A385797 - OEIS

%I #6 Jul 14 2025 00:26:11

%S 5,59,569,599,659,5569,5659,5669,6569,6599,6659,6959,56569,56599,

%T 56659,56999,59659,59669,59699,59999,65599,65699,66569,66959,69959,

%U 95569,95959,96959,99559,556559,556999,565559,566659,566999,569599,569659,596569,596599,596669

%N Primes having only {5, 6, 9} as digits.

%H Jason Bard, <a href="/A385797/b385797.txt">Table of n, a(n) for n = 1..10000</a>

%H <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a>

%t Flatten[Table[Select[FromDigits /@ Tuples[{5, 6, 9}, n], PrimeQ], {n, 7}]]

%o (Magma) [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [5, 6, 9]];

%o (Python) print(list(islice(primes_with("569"), 41))) # uses function/imports in A385776

%o (PARI) primes_with(, 1, [5, 6, 9]) \\ uses function in A385776

%Y Supersequence of A020468.

%Y Cf. A000040, A030433, A385776.

%K nonn,base,easy

%O 1,1

%A _Jason Bard_, Jul 13 2025