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1, 1, 1, -1, 0, 1, 1, 1, 0, 1, -1, 0, 0, 0, 1, -1, -1, 1, 0, 0, 1, -1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1, -1, -1, 0, 0, 1, 0, 0, 0, 0, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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Row sums = A104117: (1, 2, 0, 3, 0, 0, 0, 4, 0, 0,...).
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LINKS
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Table of n, a(n) for n=1..55.
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FORMULA
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A129360 * A115361 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
-1, 0, 1;
1, 1, 0, 1;
-1, 0, 0, 0, 1;
-1, -1, 1, 0, 0, 1;
-1, 0, 0, 0, 0, 0, 1;
1, 1, 0, 1, 0, 0, 0, 1;
...
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CROSSREFS
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Cf. A104117, A129360, A115361.
Sequence in context: A054524 A110471 A174854 * A051731 A135839 A071022
Adjacent sequences: A103991 A103992 A103993 * A103995 A103996 A103997
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KEYWORD
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tabl,sign
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AUTHOR
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Gary W. Adamson, Apr 15 2007
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STATUS
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approved
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