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Search: id:A127891
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| A127891 |
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Smallest n-digit left-truncatable prime. |
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+0
3
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| 2, 13, 113, 1223, 12113, 121283, 1237547, 12184967, 124536947, 1219861613, 12181833347, 121339693967, 1213536676883, 12673876537547, 121848768729173, 1275463876537547, 12429121339693967, 165678739293946997
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Ends at a(24) = 357686312646216567629137.
Agrees with A088604 for 24 terms, but this sequence ends there while A088604 continues.
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REFERENCES
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Angell, I. O. and Godwin, H. J. "On Truncatable Primes." Math. Comput. 31, 265-267, 1977.
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LINKS
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Ray Chandler, Table of n, a(n) for n=1..24
Index entries for sequences related to truncatable primes
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CROSSREFS
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Cf. A024785, A050987, A088604, A127892.
Sequence in context: A046813 A096497 A088604 this_sequence A110369 A000180 A004122
Adjacent sequences: A127888 A127889 A127890 this_sequence A127892 A127893 A127894
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KEYWORD
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base,nonn,fini
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AUTHOR
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Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 04 2007
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