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A201740
The value of the Mertens function at n^n.
0
1, -1, -1, -1, 4, 39, -158, 211, -186, -33722, 55130, 192039, -4032991
OFFSET
1,5
REFERENCES
Marc Deleglise and Joel Rivat, Computing the summation of the Mobius function, Experiment. Math. 5 (1996), no. 4, 291-295.
FORMULA
a(n) = A002321(n^n).
MATHEMATICA
Table[Sum[MoebiusMu[k], {k, n^n}], {n, 7}]
CROSSREFS
KEYWORD
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AUTHOR
Carl Najafi, Dec 04 2011
EXTENSIONS
a(9)-a(10) from Max Alekseyev, Dec 10 2011
a(11) from Donovan Johnson, Jun 21 2012
a(12)-a(13) from Rikard Nordgren, Nov 10 2012
STATUS
approved