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A230711
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Values of y such that x^2 + y^2 = 5^n with x and y coprime and 0 < x < y.
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7
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2, 4, 11, 24, 41, 117, 278, 527, 1199, 3116, 6469, 11753, 33802, 76443, 136762, 354144, 873121, 1721764, 3565918, 9653287, 20783558, 34867797, 103232189, 242017776, 451910159, 1064447283, 2726446322, 5583548873, 10513816601, 29729597084, 66349305331
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OFFSET
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1,1
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COMMENTS
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The corresponding x-values are in A230710.
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LINKS
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EXAMPLE
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a(4)=24 because 7^2+24^2=625=5^4.
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MATHEMATICA
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Table[Select[PowersRepresentations[5^n, 2, 2], CoprimeQ[#[[1]], #[[2]]] &][[1, 2]], {n, 33}] (* T. D. Noe, Nov 04 2013 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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