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Search: id:A134065
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| 1, 3, 4, 3, 8, 4, 3, 12, 12, 4, 3, 16, 24, 16, 4, 20, 40, 40, 20, 4, 3, 24, 60, 80, 60, 24, 4, 3, 28, 84, 140, 140, 84, 28, 4, 3, 32, 112, 224, 280, 224, 112, 32, 3, 36, 144, 336, 504, 504, 336, 144, 36, 4
(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 = A078485 starting (1, 7, 15, 31, 63, 127,...).
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FORMULA
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A134059 + A124927 - A007318 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 4;
3, 8, 4;
3, 12, 12, 4;
3, 16, 24, 16, 4;
3, 20, 40, 40, 20, 4;
...
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CROSSREFS
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Cf. A124927, A134059, A078485.
Sequence in context: A141730 A127737 A077005 this_sequence A015887 A077628 A051508
Adjacent sequences: A134062 A134063 A134064 this_sequence A134066 A134067 A134068
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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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