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A068340 Sum{k=1 to n} mu(k)*k, where mu(k) is the Moebius function. +0
9
1, -1, -4, -4, -9, -3, -10, -10, -10, 0, -11, -11, -24, -10, 5, 5, -12, -12, -31, -31, -10, 12, -11, -11, -11, 15, 15, 15, -14, -44, -75, -75, -42, -8, 27, 27, -10, 28, 67, 67, 26, -16, -59, -59, -59, -13, -60, -60, -60, -60, -9, -9, -62, -62, -7, -7, 50, 108, 49 (list; graph; listen)
OFFSET

1,3

COMMENT

Equals row sums of triangle A143158 - Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 27 2008

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

CROSSREFS

Cf. A143158.

Sequence in context: A021073 A021961 A115365 this_sequence A097667 A019627 A137617

Adjacent sequences: A068337 A068338 A068339 this_sequence A068341 A068342 A068343

KEYWORD

sign

AUTHOR

Leroy Quet Feb 27 2002

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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