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A053580
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Primes whose digits contain circles.
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4
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89, 809, 6089, 6689, 6869, 6899, 8009, 8069, 8089, 8609, 8669, 8689, 8699, 8969, 8999, 9689, 60089, 60689, 60869, 60889, 60899, 66089, 66809, 66889, 68099, 68669, 68699, 68899, 68909, 69809, 69899, 80669, 80809, 80909, 80989, 86069, 86689
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Only the digits 6, 8, 9, and 0 are permitted. The terms must, of course, end with the digit 9. - Harvey P. Dale, Jan 27 2015
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LINKS
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Harvey P. Dale, Table of n, a(n) for n = 1..10000
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MATHEMATICA
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Select[10#+9&/@Sort[FromDigits/@Tuples[{6, 8, 9, 0}, 4]], PrimeQ] (* Harvey P. Dale, Jan 27 2015 *)
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CROSSREFS
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Cf. A000040, A052090.
Sequence in context: A063654 A308801 A069764 * A239719 A290314 A103548
Adjacent sequences: A053577 A053578 A053579 * A053581 A053582 A053583
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KEYWORD
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base,nonn,less
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AUTHOR
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G. L. Honaker, Jr., Jan 18 2000
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EXTENSIONS
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Extended by Ray Chandler, Feb 08 2009
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STATUS
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approved
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