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Search: id:A064980
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A064980 n*10^6-1, n*10^6-3, n*10^6-7 and n*10^6-9 are all prime. +0
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719, 11225, 16736, 19304, 29117, 43496, 64259, 75542, 88514, 99803, 119195, 131051, 153080, 153179, 154874, 155720, 162188, 163091, 163778, 175214, 200303, 204098, 221330, 257135, 258845, 268559, 276401, 322454, 357251, 358217, 385565 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

Select[ Range[5 10^5], PrimeQ[10^6# - 1] && PrimeQ[10^6# - 3] && PrimeQ[10^6# - 7] && PrimeQ[10^6# - 9] &]

CROSSREFS

Adjacent sequences: A064977 A064978 A064979 this_sequence A064981 A064982 A064983

Sequence in context: A101797 A127227 A139177 this_sequence A101997 A139195 A056467

KEYWORD

easy,nonn

AUTHOR

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

page 1

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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