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Search: id:A127703
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| A127703 |
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A004736 * A127701 as infinite lower triangular matrices. A004736 = (1; 2, 1; 3, 2, 1;...); A127701 = (1, 2, 3,...) in the main diagonal and (1, 1, 1,...) in the subdiagonal. |
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+0
1
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| 1, 3, 2, 5, 5, 3, 7, 8, 7, 4, 9, 1, 11, 9, 5, 11, 14, 15, 14, 11, 6, 13, 17, 19, 19, 17, 13, 7, 15, 20, 23, 24, 23, 20, 15, 8, 17, 23, 27, 29, 29, 27, 23, 17, 9, 19, 26, 31, 34, 35, 34, 31, 26, 19, 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 = A008778: (1, 5, 13, 26, 45,...)
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EXAMPLE
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First few rows of the triangle are:
1;
3, 2;
5, 5, 3;
7, 8, 7, 4;
9, 11, 11, 9, 5;
11, 14, 15, 14, 11, 6;
13, 17, 19, 19, 17, 13, 7;
...
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CROSSREFS
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Cf. A004736, A008778, A127701.
Sequence in context: A124732 A094787 A132778 this_sequence A127738 A001598 A141297
Adjacent sequences: A127700 A127701 A127702 this_sequence A127704 A127705 A127706
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KEYWORD
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nonn,tabl,tabl,easy,more
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 24 2007
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