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Search: id:A153281
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| 1, 2, 1, 4, 2, 2, 8, 4, 4, 3, 16, 8, 8, 6, 5, 32, 16, 16, 12, 10, 8, 64, 32, 32, 24, 20, 16, 13, 128, 64, 64, 48, 40, 32, 26, 21, 256, 128, 128, 96, 80, 64, 52, 42, 34, 512, 256, 256, 192, 160, 128, 104, 84, 68, 55
(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 = A008466(k-2): (1, 3, 8, 19, 43, 94,...).
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FORMULA
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Triangle read by rows, A130321 * A127647. A130321 = an infinite lower triangular
matrix with powers of 2: (A000079) in every column: (1, 2, 4, 8,...).
A127647 = an infinite lower triangular matrix with the Fibonacci numbers,
A000045 as the main diagonal and the rest zeros.
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EXAMPLE
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First few rows of the triangle =
1;
2, 1;
4, 2, 2;
8, 4, 4, 3;
16, 8, 8, 6, 5;
32, 16, 16, 12, 10, 8;
64, 32, 32, 24, 20, 16, 13;
128, 64, 64, 48, 40, 32, 26, 21;
256, 128, 128, 96, 80, 64, 52, 42, 34;
512, 256, 256, 192, 160, 128, 104, 84, 68, 55;
...
Row 4 = (16, 8, 8, 6, 5) = termwise products of (16, 8, 4, 2, 1) and (1, 1, 2, 3, 5).
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CROSSREFS
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Cf. A130321, A127647, A008466
Sequence in context: A086685 A094571 A104733 this_sequence A130584 A078458 A033317
Adjacent sequences: A153278 A153279 A153280 this_sequence A153282 A153283 A153284
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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), Dec 23 2008
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