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Search: id:A102109
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| A102109 |
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Smallest prime a(n) such that concatenation of first n+1 primes starting from a(n), separated by n zeros, is prime. |
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+0
1
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| 23, 79, 41, 53, 163, 283, 307, 151, 101, 199, 367, 149, 2027, 1783, 1621, 2999, 5303, 2699, 2381, 7129, 3019, 4159, 2503, 41647, 2971, 9413, 8369, 5801, 7247, 18517, 15887
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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a(5)=163: 1630000016700000173000001790000018100000191 is prime.
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CROSSREFS
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Sequence in context: A044161 A044542 A141945 this_sequence A141974 A142650 A078597
Adjacent sequences: A102106 A102107 A102108 this_sequence A102110 A102111 A102112
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KEYWORD
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base,more,nonn,less
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AUTHOR
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Ray G. Opao (1260(AT)email.com), Feb 14 2005
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EXTENSIONS
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More terms from David Wasserman (dwasserm(AT)earthlink.net), Apr 04 2008
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