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A087872
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Primes of the form (4*k + 3)^2 + (4*k + 2)^2 where k=0,1,2,3,...
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2
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13, 421, 1013, 1861, 2381, 3613, 5101, 9941, 13613, 16381, 21013, 24421, 30013, 34061, 47741, 52813, 60901, 82013, 99013, 106261, 168781, 218461, 223781, 234613, 304981, 337021, 370661, 377581, 391613, 405901, 413141, 427813, 450301, 481181
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OFFSET
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1,1
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COMMENTS
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LINKS
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MATHEMATICA
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Select[Table[32n^2+40n+13, {n, 0, 800}], PrimeQ] (* Vincenzo Librandi, Dec 12 2011 *)
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PROG
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(PARI) fourmp1b(n) = { for(x=1, n, z=(4*x+3)^2+(4*x+2)^2; if(isprime(z), print1(z", ")) ) }
(Magma) [a: n in [0..200] | IsPrime(a) where a is 32*n^2+40*n+13]; // Vincenzo Librandi, Dec 12 2011
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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Description revised to agree with insertion of new term by Ray Chandler, May 21 2017
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STATUS
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approved
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