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 A386173 #6 Jul 18 2025 16:49:59 %S A386173 3,7,37,43,47,67,73,337,347,367,373,433,443,463,467,643,647,673,677, %T A386173 733,743,773,3343,3347,3373,3433,3463,3467,3637,3643,3673,3677,3733, %U A386173 3767,4337,4363,4373,4447,4463,4637,4643,4663,4673,4733,6337,6343,6367,6373,6473 %N A386173 Primes having only {3, 4, 6, 7} as digits. %H A386173 Jason Bard, <a href="/A386173/b386173.txt">Table of n, a(n) for n = 1..10000</a> %H A386173 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a> %t A386173 Flatten[Table[Select[FromDigits /@ Tuples[{3, 4, 6, 7}, n], PrimeQ], {n, 7}]] %o A386173 (Magma) [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [3, 4, 6, 7]]; %o A386173 (Python) print(list(islice(primes_with("3467"), 41))) # uses function/imports in A385776 %o A386173 (PARI) primes_with(, 1, [3, 4, 6, 7]) \\ uses function in A385776 %Y A386173 Supersequence of A199346, A199347, A260380, A385794. %Y A386173 Cf. A000040, A385776. %K A386173 nonn,base,easy %O A386173 1,1 %A A386173 _Jason Bard_, Jul 18 2025