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Search: id:A107644
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| A107644 |
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Numbers n such that the string 1113n is prime. |
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5
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OFFSET
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1,2
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COMMENT
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11 and 13 are twin primes.
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EXAMPLE
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If n=1, then 1113n = 11131 (prime).
If n=47, then 1113n = 111347 (prime).
If n=149, then 1113n = 1113149 (prime).
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CROSSREFS
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Sequence in context: A137670 A080830 A072184 this_sequence A139843 A102874 A086532
Adjacent sequences: A107641 A107642 A107643 this_sequence A107645 A107646 A107647
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KEYWORD
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nonn
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Jun 09 2005
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