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Search: id:A134868
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| 1, 2, 2, 2, 2, 3, 2, 2, 3, 4, 2, 2, 3, 4, 5, 2, 2, 3, 4, 5, 6, 2, 2, 3, 4, 5, 6, 7, 2, 2, 3, 4, 5, 6, 7, 8, 2, 2, 3, 4, 5, 6, 7, 8, 9, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = A134869: (1, 4, 7, 11, 16, 22, 29,...).
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FORMULA
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A103451 * A002260 as infinite lower triangular matrices. Left border of A002260, (1, 1, 1, 1,...) is replaced by (1, 2, 2, 2,...).
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EXAMPLE
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First few rows of the triangle are:
1;
2, 2;
2, 2, 3;
2, 2, 3, 4;
2, 2, 3, 4, 5;
...
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CROSSREFS
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Cf. A002260, A071324, A134869.
Sequence in context: A138139 A127992 A067595 this_sequence A127417 A128764 A074589
Adjacent sequences: A134865 A134866 A134867 this_sequence A134869 A134870 A134871
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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), Nov 14 2007
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