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Search: id:A134397
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| 1, 2, 1, 4, 4, 1, 8, 12, 6, 1, 15, 30, 23, 8, 1, 26, 65, 68, 37, 10, 1, 42, 126, 168, 126, 54, 12, 1, 64, 224, 364, 350, 208, 74, 14, 1, 93, 372, 714, 840, 642, 318, 97, 16, 1, 130, 585, 1296, 1806, 1692, 1080, 460, 123, 18, 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 = A048481: (1, 3, 9, 27, 77, 207, 529,...).
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FORMULA
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A077018 * 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;
4, 4, 1;
8, 12, 6, 1;
15, 30, 23, 8, 1;
26, 65, 68, 37, 10, 1;
42, 126, 168, 126, 54, 12, 1;
...
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CROSSREFS
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Cf. A077018, A048481.
Sequence in context: A140693 A131249 A048807 this_sequence A134395 A038207 A065109
Adjacent sequences: A134394 A134395 A134396 this_sequence A134398 A134399 A134400
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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), Oct 23 2007
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