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A098927 Least k such that k*P(n)# + P(n+1) and k*P(n)# + P(n+2) are consecutive primes. +0
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13, 24, 4, 45, 7, 8, 20, 9, 23, 82, 13, 30, 13, 60, 146, 60, 20, 8, 29, 37, 52, 106, 155, 8, 183, 47, 59, 104, 710, 425, 320, 189, 60, 263, 355, 245, 382, 440, 610, 1070, 50, 121, 173, 167, 3, 1349, 49, 34, 7, 1328, 390, 310, 1039, 182, 107, 53, 395, 671, 857, 346 (list; graph; listen)
OFFSET

1,1

EXAMPLE

13*2+3=29 prime

13*2+5=31 prime P(1)#=2, 13*P(1)#+P(2) and 13*P(1)#+P(3) are primes so k(1)=13

CROSSREFS

Sequence in context: A018945 A018958 A119410 this_sequence A133785 A136316 A063315

Adjacent sequences: A098924 A098925 A098926 this_sequence A098928 A098929 A098930

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), Oct 19 2004

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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.


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