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Search: id:A132778
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| A132778 |
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Triangle read by rows, n-1 terms of (2n - 1) followed by n. |
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+0
2
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| 1, 3, 2, 5, 5, 3, 7, 7, 7, 4, 9, 9, 9, 9, 5, 11, 11, 11, 11, 11, 6, 13, 13, 13, 13, 13, 13, 7, 15, 15, 15, 15, 15, 15, 15, 8, 17, 17, 17, 17, 17, 17, 17, 17, 17, 9, 19, 19, 19, 19, 19, 19, 19, 19, 19, 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 = A001844: (1, 5, 13, 25, 41, 61,...).
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FORMULA
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A007318^(-1) * [A003506 * A000012], as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are;
1;
3, 2;
5, 5, 3;
7, 7, 7, 4;
9, 9, 9, 9, 5;
...
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CROSSREFS
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Cf. A003506, A001844.
Sequence in context: A124732 A167552 A094787 this_sequence A127703 A127738 A001598
Adjacent sequences: A132775 A132776 A132777 this_sequence A132779 A132780 A132781
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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), Aug 29 2007
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