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A128258 Moebius transform of A128229. 0
1, 0, 1, -1, 2, 1, -1, -1, 3, 1, -1, 0, 0, 4, 1, 0, -3, -1, 0, 5, 1, -1, 0, 0, 0, 0, 6, 1, 0, 0, -3, -1, 0, 0, 7, 1, 0, -2, -1, 0, 0, 0, 0, 8, 1, 0, -1, 0, -4, -1, 0, 0, 0, 9, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6,...). A128259 = inverse Moebius transform of A128229.

LINKS

Table of n, a(n) for n=1..55.

FORMULA

A054525 * A128229

EXAMPLE

First few rows of the triangle are:

1;

0, 1;

-1, 2, 1;

-1, -1, 3, 1;

-1, 0, 0, 4, 1;

0, -3, -1, 0, 5, 1;

...

CROSSREFS

Cf. A128259, A128229, A054525, A000010.

Sequence in context: A212219 A073266 A125692 * A104967 A098495 A175432

Adjacent sequences:  A128255 A128256 A128257 * A128259 A128260 A128261

KEYWORD

tabl,sign

AUTHOR

Gary W. Adamson, Feb 21 2007

STATUS

approved

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Last modified November 23 05:04 EST 2014. Contains 249839 sequences.