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Search: id:A089338
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| A089338 |
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Beginning with 3 the smallest number such that the concatenation a(n), a(n-1), ... a(2), a(1) is a prime. |
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+0
1
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| 3, 1, 1, 2, 1, 6, 11, 16, 11, 1, 8, 21, 13, 11, 34, 41, 12, 4, 66, 24, 15, 17, 4, 122, 70, 96, 33, 2, 43, 5, 3, 100, 44, 28, 23, 27, 12, 4, 113, 10, 3, 90, 9, 162, 15, 9, 69, 146, 9, 145, 74, 3, 42, 99, 31, 93, 35, 259, 53, 79, 14, 285, 84, 1, 36, 78, 147, 78, 66, 246, 155, 624
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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3, 13, 113, 2113, 12113, 612113, ...etc. are primes.
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CROSSREFS
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Sequence in context: A107296 A080847 A095276 this_sequence A153066 A126209 A073166
Adjacent sequences: A089335 A089336 A089337 this_sequence A089339 A089340 A089341
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 04 2003
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EXTENSIONS
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More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 07 2003
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