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A227645
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Perfect powers equal to the sum of 4 factorial numbers.
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2
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4, 8, 9, 16, 27, 32, 125, 128, 169, 243, 361, 729, 961, 1444, 10201, 403225, 725904
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OFFSET
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1,1
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COMMENTS
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a(18), if it exists, is larger than 10^100.
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LINKS
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EXAMPLE
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729 = 3^6 = 1! + 2! + 3! + 6!.
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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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