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Search: id:A130307
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| 1, 3, 1, 4, 1, 1, 7, 2, 1, 1, 6, 1, 1, 1, 1, 12, 3, 2, 1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 15, 3, 2, 2, 1, 1, 1, 1, 13, 2, 2, 1, 1, 1, 1, 1, 1, 18, 3, 2, 2, 2, 1, 1, 1, 1, 1
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A129235, (1, 4, 6, 11, 10, 20, 14,...). Left column = sigma(n), A000203.
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FORMULA
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Inverse Moebius transform of A130296.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 1;
4, 1, 1;
7, 2, 1, 1;
6, 1, 1, 1, 1;
12, 3, 2, 1, 1, 1;
8, 1, 1, 1, 1, 1, 1;
...
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CROSSREFS
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Cf. A130296, A051731, A129235, A000203.
Adjacent sequences: A130304 A130305 A130306 this_sequence A130308 A130309 A130310
Sequence in context: A125291 A055187 A109411 this_sequence A130314 A127057 A143355
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), May 20 2007
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