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A105176 Numbers n such that (p(n)#)*(4*(p(n)#)+1)-1 is prime, where p(i)# = i-th primorial. +0
1
1, 2, 4, 6, 7, 17, 23, 34, 201, 706, 1413, 2265 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A050053 A084591 A088758 this_sequence A061937 A065804 A135033

Adjacent sequences: A105173 A105174 A105175 this_sequence A105177 A105178 A105179

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), Apr 11 2005

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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