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 A385794 #6 Jul 14 2025 00:26:21 %S A385794 7,47,67,467,647,677,4447,7477,44647,44777,46447,46477,46747,47777, %T A385794 64667,64747,66467,67447,67477,67777,74747,76667,76777,77447,77477, %U A385794 77647,77747,444677,444767,446447,446477,446647,446767,447467,447677,464447,464467,464647,464747 %N A385794 Primes having only {4, 6, 7} as digits. %H A385794 Jason Bard, <a href="/A385794/b385794.txt">Table of n, a(n) for n = 1..10000</a> %H A385794 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a> %t A385794 Flatten[Table[Select[FromDigits /@ Tuples[{4, 6, 7}, n], PrimeQ], {n, 7}]] %o A385794 (Magma) [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [4, 6, 7]]; %o A385794 (Python) print(list(islice(primes_with("467"), 41))) # uses function/imports in A385776 %o A385794 (PARI) primes_with(, 1, [4, 6, 7]) \\ uses function in A385776 %Y A385794 Subsequence of A030432. %Y A385794 Supersequence of A020465, A020469. %Y A385794 Cf. A000040, A385776. %K A385794 nonn,base,easy %O A385794 1,1 %A A385794 _Jason Bard_, Jul 13 2025