This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A385773 #14 Jul 12 2025 21:21:02
%S A385773 2,5,11,151,211,251,521,1151,1511,2111,2221,2251,2521,2551,5521,11251,
%T A385773 11551,12211,12251,12511,15121,15511,15551,21121,21211,21221,21521,
%U A385773 22111,22511,25111,25121,51151,51511,51521,51551,52121,52511,55511,111121,111211
%N A385773 Primes having only {1, 2, 5} as digits.
%H A385773 Jason Bard, <a href="/A385773/b385773.txt">Table of n, a(n) for n = 1..10000</a>
%H A385773 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a>
%t A385773 Flatten[Table[ Select[FromDigits /@ Tuples[{1, 2, 5}, n], PrimeQ], {n, 7}]]
%o A385773 (Magma) [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [1, 2, 5]];
%o A385773 (Python) print(list(islice(primes_with("125"), 41))) # uses function/imports in A385776
%o A385773 (PARI) primes_with(, 1, [1, 2, 5]) \\ uses function in A385776
%Y A385773 Supersequence of A024050, A020453.
%Y A385773 Cf. A000040, A385776.
%K A385773 nonn,base,easy
%O A385773 1,1
%A A385773 _Jason Bard_, Jul 09 2025