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 A260829 #15 Jul 21 2025 00:48:27
%S A260829 5,7,67,557,577,677,757,5557,5657,6577,7577,7757,55667,56767,57557,
%T A260829 57667,65557,65657,65677,65777,67567,67577,67757,67777,75557,75577,
%U A260829 75767,76667,76757,76777,77557,555557,555677,555767,557567,565567,565667,566557,566567
%N A260829 Primes having only {5, 6, 7} as digits.
%C A260829 A020467 and A020469 are subsequences.
%H A260829 Alois P. Heinz, <a href="/A260829/b260829.txt">Table of n, a(n) for n = 1..10000</a>
%H A260829 James Maynard and Brady Haran, <a href="https://www.youtube.com/watch?v=eeoBCS7IEqs">Primes without a 7</a>, Numberphile video (2019)
%H A260829 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a>
%t A260829 Select[Prime[Range[2 10^5]], Complement[IntegerDigits[#], {5, 6, 7}] == {} &]
%o A260829 (Magma) [p: p in PrimesUpTo(2*10^6) | Set(Intseq(p)) subset [5,6,7]];
%Y A260829 Cf. similar sequences listed in A260827.
%Y A260829 Cf. A020467, A020469.
%K A260829 nonn,easy,base
%O A260829 1,1
%A A260829 _Vincenzo Librandi_, Aug 02 2015