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Search: id:A131376
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| 1, 2, 1, 1, 3, 1, 2, 2, 5, 1, 1, 5, 6, 6, 1, 2, 3, 14, 9, 8, 1, 1, 7, 14, 24, 16, 9, 1, 2, 4, 27, 30, 45, 21, 11, 1, 1, 9, 25, 62, 70, 66, 31, 12, 1, 2, 5, 44, 71, 147, 120, 104, 38, 14, 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 = A117591: (1, 3, 5, 10, 19, 37, 72,...).
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FORMULA
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A007318 + A065941 - A049310 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, 3, 1;
2, 2, 5, 1;
1, 5, 6, 6, 1;
2, 3, 14, 9, 8, 1;
1, 7, 14, 24, 16, 9, 1;
...
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CROSSREFS
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Cf. A007318, A065941, A049310, A117591, A131375.
Adjacent sequences: A131373 A131374 A131375 this_sequence A131377 A131378 A131379
Sequence in context: A124734 A037034 A139462 this_sequence A025840 A029284 A123275
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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), Jul 04 2007
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