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A106985 Primes of the form 5x^2+3xy+5y^2, with x and y nonnegative. 2

%I

%S 5,13,31,59,83,97,271,307,349,353,409,479,593,643,691,733,761,839,941,

%T 983,1151,1217,1259,1307,1567,1601,1721,1861,1867,1879,1931,2113,2243,

%U 2273,2309,2351,2371,2663,2719,2749,2777,2803,2819,2897,2953,2957

%N Primes of the form 5x^2+3xy+5y^2, with x and y nonnegative.

%C Discriminant=-91. See A106856 for more information.

%H Vincenzo Librandi, <a href="/A106985/b106985.txt">Table of n, a(n) for n = 1..1000</a>

%t QuadPrimes[5, 3, 5, 10000] (* see A106856 *)

%K nonn,easy

%O 1,1

%A _T. D. Noe_, May 09 2005

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Last modified May 19 00:10 EDT 2013. Contains 225428 sequences.