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Search: id:A134060
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| 1, 2, 3, 2, 6, 3, 2, 9, 9, 3, 2, 12, 18, 12, 3, 2, 15, 30, 30, 15, 3, 2, 18, 45, 60, 45, 18, 3, 2, 21, 63, 105, 105, 63, 21, 3, 2, 24, 84, 168, 210, 168, 84, 24, 3, 2, 27, 108, 252, 378, 378, 252, 108, 27, 3
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A052940: (1, 5, 11, 23, 47, 95,...).
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FORMULA
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A124927 + A134058 - A007318 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
2, 3;
2, 6, 3;
2, 9, 9, 3;
2, 12, 18, 12, 3;
2, 15, 30, 30, 15, 3;
...
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CROSSREFS
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Cf. A127927, A134058, A052940, A007318.
Sequence in context: A085307 A078599 A033031 this_sequence A097914 A113710 A054126
Adjacent sequences: A134057 A134058 A134059 this_sequence A134061 A134062 A134063
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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), Oct 05 2007
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