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A174194 10n-7 and 10n-3 are both primes. 0

%I #3 Mar 30 2012 18:52:39

%S 1,2,5,11,17,20,23,32,47,62,65,68,83,86,89,110,122,131,143,149,167,

%T 170,179,188,200,209,221,230,248,269,284,296,317,326,335,347,362,368,

%U 380,395,401,416,452,479,482,494,524,542,551,566,593,605,674,683,725,758

%N 10n-7 and 10n-3 are both primes.

%K nonn,easy

%O 1,2

%A _Juri-Stepan Gerasimov_, Mar 11 2010

%E Corrected by _Charles R Greathouse IV_, Mar 21 2010

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Last modified May 26 04:31 EDT 2024. Contains 372807 sequences. (Running on oeis4.)