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1, 1, 1, 2, 1, 1, 3, 2, 2, 1, 5, 3, 4, 2, 1, 8, 5, 7, 4, 3, 1, 13, 8, 12, 7, 7, 3, 1, 21, 13, 20, 12, 14, 7, 4, 1, 34, 21, 33, 20, 26, 14, 11, 4, 1, 55, 34, 54, 33, 46, 26, 25, 11, 5, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,4
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COMMENTS
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Leftmost two columns = Fibonacci numbers. Row sums = A029907: (1, 2, 4, 8, 15, 28, 51,...).
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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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A131332 * A000012, where A000012 = (1; 1,1; 1,1,1;...). Partial sums of A131332 rows starting from the right.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
2, 1, 1;
3, 2, 2, 1;
5, 3, 4, 2, 1;
8, 5, 7, 4, 3, 1;
13, 8, 12, 7, 7, 3, 1;
21, 13, 20, 12, 14, 7, 4, 1;
...
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CROSSREFS
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Cf. A131332, A131334, A131335, A131336.
Sequence in context: A016441 A211161 A208101 * A120643 A111867 A133776
Adjacent sequences: A131330 A131331 A131332 * A131334 A131335 A131336
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson, Jun 29 2007
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STATUS
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approved
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