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A058126
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a(n) = n^n - n^2 with 0^0=1.
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3
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1, 0, 0, 18, 240, 3100, 46620, 823494, 16777152, 387420408, 9999999900, 285311670490, 8916100448112, 302875106592084, 11112006825557820, 437893890380859150, 18446744073709551360
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OFFSET
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0,4
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LINKS
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FORMULA
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E.g.f.: 1/(1 + LambertW(-x)) - x*(x + 1)*exp(x), where LambertW() is the Lambert W-function. - Ilya Gutkovskiy, Feb 08 2017
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EXAMPLE
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a(2) = 2^2 - 2^2 = 4 - 4 = 0.
a(3) = 3^3 - 3^2 = 27 - 9 = 18.
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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