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Search: id:A133087
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| 1, 2, 1, 1, 2, 1, 2, 5, 4, 1, 1, 4, 6, 4, 1, 2, 9, 16, 14, 6, 1, 1, 6, 15, 20, 15, 6, 1, 2, 13, 36, 55, 50, 27, 8, 1, 1, 8, 28, 56, 70, 56, 28, 8, 1, 2, 17, 64, 140, 196, 182, 112, 44, 10, 1
(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 = A084221: (1, 3, 4, 12, 16, 48, 64, 192,...).
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FORMULA
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A133080 * A007318 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
2, 1;
1, 2, 1;
2, 5, 4, 1;
1, 4, 6, 4, 1;
2, 9, 16, 14, 6, 1;
1, 6, 15, 20, 15, 6, 1;
2, 13, 36, 55, 50, 27, 8, 1;
1, 8, 28, 56, 70, 56, 28, 8, 1;
...
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CROSSREFS
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Cf. A133080, A084221.
Sequence in context: A116491 A131325 A049824 this_sequence A153919 A153905 A165357
Adjacent sequences: A133084 A133085 A133086 this_sequence A133088 A133089 A133090
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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 08 2007
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