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1, 2, 1, 3, 1, 2, 4, 2, 2, 3, 5, 2, 2, 3, 6, 6, 3, 4, 3, 6, 7, 7, 3, 4, 3, 6, 7, 14, 8, 4, 4, 6, 6, 7, 14, 17, 9, 4, 6, 6, 6, 7, 14, 17, 27, 10, 5, 6, 6, 12, 7, 14, 17, 27, 34
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history;
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OFFSET
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1,2
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COMMENTS
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Row sums = A026905, partial sums of A000041, the partition numbers with offset 1, = (1, 3, 6, 11, 18, 29, 44, 66, ...).
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LINKS
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Table of n, a(n) for n=1..55.
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FORMULA
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A000012 * A130162 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle:
1;
2, 1;
3, 1, 2;
4, 2, 2, 3;
5, 2, 2, 3, 6;
6, 3, 4, 3, 6, 7;
7, 3, 4, 3, 6, 7, 14;
...
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CROSSREFS
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Cf. A130162, A026905, A000041.
Sequence in context: A130517 A316715 A130212 * A213361 A212121 A213371
Adjacent sequences: A133734 A133735 A133736 * A133738 A133739 A133740
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson, Sep 22 2007
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STATUS
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approved
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