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A135791
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Positive numbers of the form x^5-10x^3*y^2+5x*y^4 (where x,y are integers and x>y).
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6
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404, 1900, 3647, 5646, 12928, 13412, 14050, 27688, 30609, 36413, 45716, 51804, 60800, 74576, 90050, 98172
(list;
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listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Refers to A057102, which had an incorrect description and has been replaced by A256418. As a result the present sequence should be re-checked. - N. J. A. Sloane, Apr 06 2015
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LINKS
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MATHEMATICA
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a = {}; Do[Do[w = x^5 - 10x^3 y^2 + 5x y^4; If[w > 0 && w < 100000, AppendTo[a, w]], {x, y, 1000}], {y, 1, 1000}]; Union[a]
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CROSSREFS
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Cf. A000404, A050803, A057102, A135784, A060803, A135786, A135787, A135789, A135790, A135792, A135793.
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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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