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Search: id:A131373
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| 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 5, 2, 1, 1, 3, 6, 6, 3, 1, 1, 3, 10, 7, 10, 3, 1, 1, 4, 11, 14, 14, 11, 4, 1, 1, 4, 16, 15, 29, 15, 16, 4, 1, 1, 5, 17, 26, 35, 35, 26, 17, 5, 1
(list; table; graph; listen)
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OFFSET
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0,8
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COMMENT
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Row sums = A131269: (1, 2, 3, 6, 11, 20, 35, 60,...).
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FORMULA
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A046854 + A065941 - A000012 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 1, 1;
1, 2, 2, 1;
1, 2, 5, 2, 1;
1, 3, 6, 6, 3, 1;
1, 3, 10, 7, 10, 3, 1;
1, 4, 11, 14, 14, 11, 4, 1;
1, 4, 16, 15, 29, 15, 16, 4, 1;
...
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CROSSREFS
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Cf. A056854, A065941, A000012, A131269.
Sequence in context: A101489 A104156 A070166 this_sequence A034853 A110283 A079692
Adjacent sequences: A131370 A131371 A131372 this_sequence A131374 A131375 A131376
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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 03 2007
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