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%I #6 Sep 08 2022 08:46:01
%S 449,7001,12097,96769,275129,326593,1102249,5814089,7428457,9834497,
%T 10370809,12096001,13346369,16099777,20901889,23625001,35619137,
%U 40824001,80802233,104208553,128798209,143995769,147172033,156980377,163755593
%N Primes of the form 7n^3+1.
%H Vincenzo Librandi, <a href="/A201182/b201182.txt">Table of n, a(n) for n = 1..2500</a>
%t Select[Table[7n^3+1,{n,0,6000}],PrimeQ]
%o (Magma) [a: n in [0..400] | IsPrime(a) where a is 7*n^3+1]
%K nonn,easy
%O 1,1
%A _Vincenzo Librandi_, Nov 28 2011
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