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Search: id:A083565
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| A083565 |
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Begins the first chain of n consecutive primes whose product - 2 is prime. |
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+0
1
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| 3, 3, 3, 3, 3, 3, 3, 23, 3, 131, 3, 67, 7, 3
(list; graph; listen)
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OFFSET
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2,1
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EXAMPLE
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3 is the smallest prime in 3, 5, 7, 11 which is the first chain
of four consecutive primes whose product - 2 is prime: 3 * 5 * 7 * 11 - 2 = 1153 (prime). Hence a(4) = 3.
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CROSSREFS
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Sequence in context: A162844 A115787 A105592 this_sequence A063438 A081168 A111233
Adjacent sequences: A083562 A083563 A083564 this_sequence A083566 A083567 A083568
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KEYWORD
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nonn
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AUTHOR
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Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jun 12 2003
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