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Search: id:A133571
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| 1, 3, 1, 3, 2, 1, 5, 5, 5, 1, 5, 4, 10, 4, 1, 7, 9, 26, 14, 7, 1, 7, 6, 35, 20, 21, 6, 1, 9, 13, 71, 55, 71, 27, 9, 1, 9, 8, 84, 56, 126, 56, 36, 8, 1, 11, 17, 148, 140, 322, 182, 14844, 11, 1
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = A133572: (1, 4, 6, 16, 24, 64, 96, 256,...).
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FORMULA
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(A007318 * A133080 + A133080 * A007318) - A007318, as infinite lower triangular matrices, where A133080 is an interpolation operator.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 1;
3, 2, 1;
5, 5, 5, 1;
5, 4, 10, 4, 1;
7, 9, 26, 14, 7, 1;
7, 6, 35, 20, 21, 6, 1;
9, 13, 71, 55, 71, 27, 9, 1;
...
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CROSSREFS
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Cf. A133080, A133572.
Sequence in context: A047787 A102668 A057741 this_sequence A083208 A126682 A016571
Adjacent sequences: A133568 A133569 A133570 this_sequence A133572 A133573 A133574
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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), Sep 16 2007
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