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Search: id:A131270
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| 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 5, 1, 1, 1, 5, 5, 7, 1, 1, 1, 5, 11, 7, 9, 1, 1, 1, 7, 11, 19, 9, 11, 1, 1, 7, 19, 19, 29, 11, 13, 1, 1, 9, 19, 39, 29, 41, 13, 15, 1, 1
(list; table; graph; listen)
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OFFSET
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0,8
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COMMENT
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Row sums = A131269: (1, 2, 3, 6, 11, 20, 35, 60, 101, 168,...).
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FORMULA
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2*A046854 - A000012. Reversed triangle of A131268
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 1, 1;
1, 3, 1, 1;
1, 3, 5, 1, 1;
1, 5, 5, 7, 1, 1;
1, 5, 11, 7, 9, 1, 1;
1, 7, 11 19, 9, 11, 1, 1;
...
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CROSSREFS
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Cf. A046854, A065941, A000012, A131268, A131269.
Sequence in context: A076476 A016733 A060234 this_sequence A109223 A016466 A055210
Adjacent sequences: A131267 A131268 A131269 this_sequence A131271 A131272 A131273
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 23 2007
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