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Search: id:A129690
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| 1, 1, 1, 3, 2, 1, 3, 5, 3, 1, 5, 8, 8, 4, 1, 5, 13, 16, 12, 5, 1, 7, 18, 29, 28, 17, 6, 1, 7, 25, 47, 57, 45, 23, 7, 1, 9, 32, 72, 104, 102, 68, 30, 8, 1, 9, 41, 104, 176, 206, 170, 98, 38, 9, 1
(list; table; graph; listen)
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OFFSET
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1,4
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COMMENT
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Row sums = A084170: (1, 2, 6, 12, 52, 106, 426,...). A129689 = A007318 * A129688. Left column = A109613: (1, 1, 3, 3, 5, 5,...).
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FORMULA
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A129688 * A007318 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
3, 2, 1;
3, 5, 3, 1;
5, 8, 8, 4, 1;
5, 13, 16, 12, 5, 1;
7, 18, 29, 28, 17, 6, 1;
...
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CROSSREFS
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Cf. A057711, A129689, A007318, A129688, A109613.
Sequence in context: A010267 A023636 A081248 this_sequence A035572 A115215 A089942
Adjacent sequences: A129687 A129688 A129689 this_sequence A129691 A129692 A129693
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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), Apr 28 2007
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