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A201305 Primes of the form 10n^3+7. 1

%I

%S 7,17,277,647,7297,10007,21977,33757,68597,106487,138247,156257,

%T 196837,359377,466567,506537,640007,795077,973367,1574647,1951127,

%U 2621447,5314417,5513687,6141257,10612087,11910167,12950297,14815447,19066247

%N Primes of the form 10n^3+7.

%H Vincenzo Librandi, <a href="/A201305/b201305.txt">Table of n, a(n) for n = 1..6000</a>

%t Select[Table[10n^3+7,{n,0,7000}],PrimeQ]

%o (MAGMA) [a: n in [0..300] | IsPrime(a) where a is 10*n^3+7];

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Nov 30 2011

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Last modified October 26 00:52 EDT 2021. Contains 348256 sequences. (Running on oeis4.)