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Search: id:A160561
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| A160561 |
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Cyclops primes with circular digits {0,6,8,9}. |
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+0
1
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| 809, 66089, 68099, 86069, 88069, 89069, 99089, 6680689, 6680699, 6680969, 6690689, 6690899, 6690989, 6860869, 6860989, 6860999, 6890699, 6890969, 6960869, 6980669, 6980899, 6980969, 6990889, 8660689, 8660699, 8660969
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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The sequence is probably infinite.
The sequence A134809 restricted to cases with digits 6, 8 or 9 (see A001743) at the off-center positions.
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CROSSREFS
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Intersection of A000040 (primes), A001743 (numbers with circular digits) and A134808 (cyclops numbers).
Also intersection of A043580 (primes with circular digits) and A134809 (cyclops primes).
Cf. A134808, A134809, A153807, A156200
Sequence in context: A031897 A075005 A160034 this_sequence A156404 A068278 A093633
Adjacent sequences: A160558 A160559 A160560 this_sequence A160562 A160563 A160564
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KEYWORD
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nonn,base
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AUTHOR
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Ki Punches (ki1212(AT)pocketmail.com), May 19 2009
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EXTENSIONS
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Edited and corrected by Ray Chandler (rayjchandler(AT)sbcglobal.net) and R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 20 2009
Definition simplified by Omar E. Pol (info(AT)polprimos.com), Jun 05 2009
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