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A064979 n*10^5-1, n*10^5-3, n*10^5-7 and n*10^5-9 are all prime. 0
7190, 7256, 7991, 15398, 16406, 20549, 21011, 24368, 51794, 68426, 71762, 73574, 77792, 80939, 84995, 98291, 102488, 112250, 139595, 160193, 163931, 164081, 164981, 167360, 167585, 170168, 193040, 220676, 226136, 227942, 245624, 246383 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..32.

MATHEMATICA

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

CROSSREFS

Sequence in context: A028541 A159223 A143193 * A348807 A204480 A035906

Adjacent sequences:  A064976 A064977 A064978 * A064980 A064981 A064982

KEYWORD

easy,nonn

AUTHOR

Robert G. Wilson v, Oct 30 2001

STATUS

approved

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Last modified August 15 02:47 EDT 2022. Contains 356122 sequences. (Running on oeis4.)