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A062793
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Moebius transform of n^n.
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2
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1, 3, 26, 252, 3124, 46626, 823542, 16776960, 387420462, 9999996872, 285311670610, 8916100401348, 302875106592252, 11112006824734470, 437893890380856224, 18446744073692774400, 827240261886336764176
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OFFSET
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1,2
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COMMENTS
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n=4, f[4]=4^4=256, divisors={1,2,4} f[4/d]={256,4,1}, mu[d]={1,-1,0}, the sum is 256-4=252=a(4)
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LINKS
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FORMULA
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a(n) = Sum{f[n/d]*mu[d]}, where d|n and f[x]=A000312(x).
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PROG
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(PARI) a(n) = sumdiv(n, d, d^d*moebius(n/d)); \\ Michel Marcus, Nov 04 2018
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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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