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A374696
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a(n) is the smallest number which can be represented as the sum of 4 distinct nonzero fourth powers in exactly n ways, or -1 if no such number exists.
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0
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(2) = 6834 = 1^4 + 2^4 + 4^4 + 9^4 = 3^4 + 4^4 + 7^4 + 8^4.
a(3) = 16578 = 1^4 + 2^4 + 9^4 + 10^4 = 2^4 + 5^4 + 6^4 + 11^4 = 3^4 + 7^4 + 8^4 + 10^4.
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CROSSREFS
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KEYWORD
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nonn,more,new
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AUTHOR
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STATUS
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approved
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