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Search: id:A078744
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A078744 Numbers n such that { (product of all the composite numbers <= n) + the n-th prime } is prime. +0
2
1, 4, 6, 7, 8, 13, 17, 18, 21, 41, 86, 101, 144, 368, 1232, 1713 (list; graph; listen)
OFFSET

1,2

COMMENT

Some of the larger entries may only correspond to probable primes.

CROSSREFS

Cf. A000142, A034386, A078745.

Adjacent sequences: A078741 A078742 A078743 this_sequence A078745 A078746 A078747

Sequence in context: A100349 A047507 A024554 this_sequence A024555 A001690 A105447

KEYWORD

more,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Dec 21 2002

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Last modified October 15 09:18 EDT 2008. Contains 145015 sequences.


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