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Search: id:A127475
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| A127475 |
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Triangle, left column = mu(n), right border = mu(n)*phi(n), row sums = n*mu(n). |
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+0
1
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| 1, -1, -1, -1, 0, -2, 0, 0, 0, 0, -1, 0, 0, 0, -4, 1, 1, 2, 0, 0, 2, -1, 0, 0, 0, 0, 0, -6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 4, 0, 0, 0, 0, 4
(list; table; graph; listen)
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OFFSET
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1,6
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COMMENT
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Left column = mu(n), A008683; right border = mu(n)*phi(n), A097945; row sums = n*mu(n), A055615: (1, -2, -3, 0, 5, 6, -7,...
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FORMULA
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M * A054522 as infinite lower triangular matrices, where M = mu(n) in the main diagonal with the rest zeros.
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EXAMPLE
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First few rows of the triangle are:
1;
-1, -1;
-1, 0, -2;
0, 0, 0, 0;
-1, 0, 0, 0, -4;
1, 1, 2, 0, 0, 2;
-1, 0, 0, 0, 0, 0, -6;
...
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CROSSREFS
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Cf. A008683, A054522, A055615, A097945, A023900.
Sequence in context: A083892 A089814 A063100 this_sequence A086014 A025437 A066032
Adjacent sequences: A127472 A127473 A127474 this_sequence A127476 A127477 A127478
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KEYWORD
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tabl,uned,sign
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 15 2007
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