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Search: id:A133341
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| 1, 2, 1, 3, 3, 2, 4, 6, 8, 4, 5, 10, 20, 20, 8, 6, 15, 40, 60, 48, 16, 7, 21, 70, 140, 168, 112, 32, 8, 28, 112, 280, 448, 448, 256, 64, 9, 36, 168, 504, 1008, 1344, 1152, 576, 128, 10, 45, 240, 840, 2016, 3360, 3840, 2880, 1280, 256
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A047926: (1, 3, 8, 22, 63, 185,...).
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FORMULA
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Binomial transform of A134312, as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
2, 1;
3, 3, 2;
4, 6, 8, 4;
5, 10, 20, 20, 8;
6, 15, 40, 60, 48, 16;
7, 21, 70, 140, 168, 112, 32;
...
3, 3, 3,
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CROSSREFS
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Cf. A134312, A047926.
Sequence in context: A002347 A006642 A094435 this_sequence A111492 A144305 A138635
Adjacent sequences: A133338 A133339 A133340 this_sequence A133342 A133343 A133344
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 19 2007
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