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Search: id:A051956
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A051956 a(n) = smallest number > a(n-1) such that a(1)*a(2)*...*a(n) + 1 and a(1)*a(2)*...*a(n) - 1 are primes. +0
1
4, 15, 17, 19, 29, 57, 77, 285, 318, 354, 379, 405, 520, 521, 595, 625, 938, 1706, 1738, 2085, 2345, 2817, 4319, 4529, 7005, 8207, 8232, 9451, 9839, 11044, 11170, 12386, 12421, 12722, 14153, 15220, 15371 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A066862 A103540 A065159 this_sequence A032826 A022133 A100783

Adjacent sequences: A051953 A051954 A051955 this_sequence A051957 A051958 A051959

KEYWORD

nice,nonn

AUTHOR

Felice Russo (felice.russo(AT)katamail.com), Dec 21 1999

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.

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