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 A386165 #6 Jul 18 2025 16:03:35 %S A386165 2,7,67,227,277,677,727,787,827,877,887,2267,2287,2677,2687,2767,2777, %T A386165 2887,6277,6287,6827,7687,7727,7867,7877,8287,8627,8677,8867,8887, %U A386165 22277,22727,22777,22787,22877,26227,26267,26627,26687,26777,27277,27767,27827,28277 %N A386165 Primes having only {2, 6, 7, 8} as digits. %H A386165 Jason Bard, <a href="/A386165/b386165.txt">Table of n, a(n) for n = 1..10000</a> %H A386165 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a> %t A386165 Flatten[Table[Select[FromDigits /@ Tuples[{2, 6, 7, 8}, n], PrimeQ], {n, 7}]] %o A386165 (Magma) [p: p in PrimesUpTo(10^6) | Set(Intseq(p)) subset [2, 6, 7, 8]]; %o A386165 (Python) print(list(islice(primes_with("2678"), 41))) # uses function/imports in A385776 %o A386165 (PARI) primes_with(, 1, [2, 6, 7, 8]) \\ uses function in A385776 %Y A386165 Supersequence of A385787, A385789, A385799. %Y A386165 Cf. A000040, A030432, A385776. %K A386165 nonn,base,easy %O A386165 1,1 %A A386165 _Jason Bard_, Jul 18 2025