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A104715
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Triangle T(n,k) = (2*k-1)*A000217(n-k+1) read by rows, 1<=k<=n.
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1
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1, 3, 3, 6, 9, 5, 10, 18, 15, 7, 15, 30, 30, 21, 9, 21, 45, 50, 42, 27, 11, 28, 63, 75, 70, 54, 33, 13, 36, 84, 105, 105, 90, 66, 39, 15, 45, 108, 140, 147, 135, 110, 78, 45, 17, 55, 135, 180, 196, 189, 165, 130, 90, 51, 19, 66, 165
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| First few rows are:
1;
3, 3;
6, 9, 5;
10, 18, 15, 7;
15, 30, 30, 21, 9;
21, 45, 50, 42, 27, 11;
...
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CROSSREFS
| Cf. A002415 (row sums), A104716.
Sequence in context: A097307 A026804 A205970 * A164743 A110769 A093445
Adjacent sequences: A104712 A104713 A104714 * A104716 A104717 A104718
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KEYWORD
| nonn,tabl,easy
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 20 2005
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EXTENSIONS
| One term corrected by R. J. Mathar, Oct 29 2011
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