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A038482
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Sums of 3 distinct powers of 7.
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2
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57, 351, 393, 399, 2409, 2451, 2457, 2745, 2751, 2793, 16815, 16857, 16863, 17151, 17157, 17199, 19209, 19215, 19257, 19551, 117657, 117699, 117705, 117993, 117999, 118041, 120051, 120057, 120099, 120393, 134457, 134463, 134505, 134799, 136857, 823551, 823593
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Union[Total/@Subsets[7^Range[0, 10], {3}]] (* Harvey P. Dale, May 06 2014 *)
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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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STATUS
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approved
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