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Search: id:A132815
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| 1, -1, 2, 1, -2, 3, -1, 0, 0, 4, 1, 4, -12, 8, 5, -1, 10, 30, -40, 25, 6, 1, 18, -45, 60, -75, 54, 7, -1, -28, 42, 0, 0, -84, 98, 8, 1, 40, 0, -224, 420, -336, 0, 160, 9, -1, -54, -108, 672, -1260, 1512, -1176, 288, 243, 10
(list; table; graph; listen)
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OFFSET
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0,3
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COMMENT
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Row sums = A001405: (1, 1, 2, 3, 6, 10, 10,...).
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FORMULA
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Inverse binomial transform of A132814.
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EXAMPLE
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First few rows of the triangle are:
1;
-1, 2;
1, -2, 3;
-1, 0, 0, 4;
1, 4, -12, 8, 5;
-1, -10, 30, -240, 25, 6;
1, 18, -45, 60, -75, 54, 7;
...
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CROSSREFS
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Cf. A132814, A001405.
Sequence in context: A088239 A130070 A082501 this_sequence A167684 A094646 A124448
Adjacent sequences: A132812 A132813 A132814 this_sequence A132816 A132817 A132818
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KEYWORD
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tabl,easy,more,sign
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 01 2007
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EXTENSIONS
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Typo corrected by Travis Hoppe, Apr 24 2008
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