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1, 0, 2, 0, 0, 3, 1, -1, 0, 4, 0, 0, 0, 0, 5, 2, -1, -2, 0, 0, 6, 0, 0, 0, 0, 0, 0, 7, 1, 1, 0, -3, 0, 0, 0, 8, 1, 0, -2, 0, 0, 0, 0, 0, 9, 2, -1, 0, 0, -4, 0, 0, 0, 0, 10
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| Row sums = A073757: (1, 2, 3, 4, 5, 5, 7, 7, 8, 7,...).
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FORMULA
| A051731 + A127448 - Identity matrix.
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EXAMPLE
| First few rows of the triangle are:
1;
0, 2;
0, 0, 3;
1, -1, 0, 4;
0, 0, 0, 0, 5;
2, -1, -2, 0, 0, 6;
0, 0, 0, 0, 0, 0, 7;
1, 1, 0, -3, 0, 0, 0, 8; [Typo corrected by N. J. A. Sloane, May 22 2010]
...
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CROSSREFS
| Cf. A127448, A073757, A051731.
Sequence in context: A029301 A162934 A082660 * A131636 A188023 A077888
Adjacent sequences: A134670 A134671 A134672 * A134674 A134675 A134676
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KEYWORD
| tabl,sign
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 05 2007
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