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A047871
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a(n) = smallest number > a(n-1) that is not a sum of exactly one power of each of the numbers 1 through n.
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1
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1, 2, 4, 7, 17, 54, 358, 1859, 13911, 175164, 3480256, 97050825, 1947896985, 60119287462
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OFFSET
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0,2
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LINKS
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EXAMPLE
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a(2)=4 because 4 is the first number >2 that is not of the form 1^i+2^j; a(3)=7 because 7 is smallest number >4 not of form 1^i+2^j+3^k.
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CROSSREFS
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KEYWORD
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nonn,nice
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AUTHOR
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EXTENSIONS
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More terms from _David W. Wilson
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STATUS
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approved
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