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Search: id:A139512
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| A139512 |
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Primes of the form x^2+32x*y+y^2. |
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+0
4
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| 229, 349, 409, 421, 661, 769, 829, 1021, 1069, 1249, 1381, 1429, 1549, 1789, 1801, 1861, 2089, 2161, 2269, 2389, 3001, 3061, 3109, 3181, 3229, 3469, 3889, 4021, 4129, 4201, 4441, 4861, 4909, 5101, 5449, 5521, 5869, 5881, 6121, 6469, 6481, 6529, 6781
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Are all terms == 1 mod 12? - Zak Seidov, Apr 25 2008
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MATHEMATICA
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a = {}; w = 32; k = 1; Do[Do[If[PrimeQ[n^2 + w*n*m + k*m^2], AppendTo[a, n^2 + w*n*m + k*m^2]], {n, m, 400}], {m, 1, 400}]; Union[a] (*Artur Jasinski*)
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CROSSREFS
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Cf. A139489, A007645, A068228, A007519, A033212, A033212, A107152, A107008, A033215, A107145, A139490, A139491.
Adjacent sequences: A139509 A139510 A139511 this_sequence A139513 A139514 A139515
Sequence in context: A062589 A094612 A112847 this_sequence A124684 A028452 A072020
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KEYWORD
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nonn,new
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Apr 24 2008
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