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A128658 Numbers n such that p(n+1)#-p(n)#+1 is prime where p(i)#=product of first i primes=A002110(i). 5
1, 3, 7, 14, 80, 224, 280, 287, 652, 1509, 2952, 3915 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..12.

CROSSREFS

Cf. A002110, A128420, A128421, A128657, A128659, A128660, A128661, A128662.

Sequence in context: A266019 A146155 A106363 * A234042 A001203 A154883

Adjacent sequences:  A128655 A128656 A128657 * A128659 A128660 A128661

KEYWORD

nonn

AUTHOR

Pierre CAMI, Mar 19 2007

STATUS

approved

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Last modified December 2 23:29 EST 2016. Contains 278694 sequences.