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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
OFFSET
1,5
COMMENTS
Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6,...). A128259 = inverse Moebius transform of A128229.
FORMULA
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
KEYWORD
tabl,sign
AUTHOR
Gary W. Adamson, Feb 21 2007
STATUS
approved