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 A053580 #15 Jul 21 2025 17:19:54
%S A053580 89,809,6089,6689,6869,6899,8009,8069,8089,8609,8669,8689,8699,8969,
%T A053580 8999,9689,60089,60689,60869,60889,60899,66089,66809,66889,68099,
%U A053580 68669,68699,68899,68909,69809,69899,80669,80809,80909,80989,86069,86689
%N A053580 Primes having only {0, 6, 8, 9} as digits.
%C A053580 Primes containing digits with circles.
%C A053580 The terms must, of course, end with the digit 9. - _Harvey P. Dale_, Jan 27 2015
%H A053580 Harvey P. Dale, <a href="/A053580/b053580.txt">Table of n, a(n) for n = 1..10000</a>
%H A053580 <a href="/index/Pri#PrimesWithDigits">Index to entries for primes with digits in a given set</a>
%t A053580 Select[10#+9&/@Sort[FromDigits/@Tuples[{6,8,9,0},4]],PrimeQ] (* _Harvey P. Dale_, Jan 27 2015 *)
%Y A053580 Cf. A000040, A052090.
%K A053580 base,nonn
%O A053580 1,1
%A A053580 _G. L. Honaker, Jr._, Jan 18 2000
%E A053580 Extended by _Ray Chandler_, Feb 08 2009