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Search: id:A134540
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| 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, -1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, -1, 0, 0, 0, 1, 1, 1, 1, 1
(list; table; graph; listen)
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OFFSET
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1,1
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COMMENT
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Row sums = phi(n), A000010: (1, 1, 2, 2, 4, 2, 6, 4, 6, 4,...).
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FORMULA
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A054525 * A000012 as infinite lower triangular matrices. Triangle read by rows, partial sums of A054525 (the Mobius transform) terms starting from the right.
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EXAMPLE
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First few rows of the triangle are:
1;
0, 1;
0, 1, 1;
0, 0, 1, 1;
0, 1, 1, 1, 1;
0, -1, 0, 1, 1, 1;
0, 1, 1, 1, 1, 1, 1;
0, 0, 0, 0, 1, 1, 1, 1;
0, 0, 0, 1, 1, 1, 1, 1, 1;
0, -1, 0, 0, 0, 1, 1, 1, 1, 1;
...
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CROSSREFS
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Cf. A054525.
Sequence in context: A087748 A117446 A101688 this_sequence A128430 A113704 A131670
Adjacent sequences: A134537 A134538 A134539 this_sequence A134541 A134542 A134543
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 31 2007
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