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A064982 n*10^7-1, n*10^7-3, n*10^7-7 and n*10^7-9 are all prime. 0
15308, 15572, 22133, 52499, 98354, 134150, 135356, 138422, 142748, 182606, 223850, 245111, 278408, 279260, 322223, 354608, 385979, 395114, 404597, 421070, 472880, 477068, 491654, 501092, 523205, 543071, 549677, 549989, 566780, 594575 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Select[ Range[10^6], PrimeQ[10^7# - 1] && PrimeQ[10^7# - 3] && PrimeQ[10^7# - 7] && PrimeQ[10^7# - 9] &]

CROSSREFS

Sequence in context: A105924 A115924 A205996 * A204317 A175751 A054834

Adjacent sequences:  A064979 A064980 A064981 * A064983 A064984 A064985

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 30 2001

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Last modified February 16 09:56 EST 2012. Contains 205904 sequences.