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A128421 Numbers n such that p(n)# + p(n+1)# +1 is prime, where p(n)# is the product of first n primes (A002110). +0
8
2, 3, 4, 5, 6, 8, 20, 56, 101, 108, 141, 202, 265, 364, 401, 1035, 1588, 3062, 4191, 4579 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Cf. A002110, A014545, A128420.

Adjacent sequences: A128418 A128419 A128420 this_sequence A128422 A128423 A128424

Sequence in context: A119336 A133706 A081710 this_sequence A115885 A029964 A099004

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), Mar 02 2007

EXTENSIONS

Corrected by Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 06 2007

Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Mar 13 2007

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.


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