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Search: id:A128258
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| 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; listen)
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OFFSET
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1,5
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COMMENT
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Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6,...). A128259 = inverse Moebius transform of A128229.
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FORMULA
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A054525 * A128229
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EXAMPLE
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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;
...
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CROSSREFS
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Cf. A128259, A128229, A054525, A000010.
Sequence in context: A125090 A073266 A125692 this_sequence A104967 A098495 A095025
Adjacent sequences: A128255 A128256 A128257 this_sequence A128259 A128260 A128261
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KEYWORD
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tabl,sign
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Feb 21 2007
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