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A087812 Sum of MoebiusMu for numbers between n and 2n inclusive. 0
0, -2, -1, -1, 0, 0, -1, 1, 0, -1, 0, 0, 1, 2, -1, -3, -1, 1, 1, 3, 1, -1, -1, -1, -1, 0, -2, -1, 1, 1, 2, 3, 3, 1, 0, -2, -2, -1, -2, -4, -3, -3, 0, 2, 1, 2, 3, 5, 4, 4, 2, 0, 0, 0, -2, -2, -4, -4, -4, -2, -1, 1, 0, -1, -1, -3, 0, 1, -1, -3, 0, 2, 4, 5, 3, 2, 1, 1, 2, 4, 5, 4, 3, 3, 2, 1, -2, -3, -1, -1, -3, -3, -3, -3, -5, -7, -7, -7, -8, -9, -7, -5, -2 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

MATHEMATICA

Table[Apply[Plus, Table[MoebiusMu[w], {w, n, 2*n}]], {n, 1, 256}]

CROSSREFS

Sequence in context: A198066 A141664 A056979 * A113045 A204179 A204244

Adjacent sequences:  A087809 A087810 A087811 * A087813 A087814 A087815

KEYWORD

sign

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Oct 14 2003

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Last modified February 14 11:17 EST 2012. Contains 205623 sequences.