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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
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; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[ Range[5 10^5], PrimeQ[10^6# - 1] && PrimeQ[10^6# - 3] && PrimeQ[10^6# - 7] && PrimeQ[10^6# - 9] &]
CROSSREFS
Sequence in context: A144767 A127227 A139177 * A290120 A101997 A139195
KEYWORD
easy,nonn
AUTHOR
Robert G. Wilson v, Oct 30 2001
STATUS
approved

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Last modified July 23 06:44 EDT 2024. Contains 374544 sequences. (Running on oeis4.)