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Search: id:A127775
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| A127775 |
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Triangle read by rows: row n consists of n-1 zeros followed by 2n-1. |
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+0
7
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| 1, 0, 3, 0, 0, 5, 0, 0, 0, 7, 0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 11, 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 0, 0, 0, 17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 21, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 25, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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a(A000207(n)) = A005408(n-1), T(n,n) = 2*n - 1. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Febr 11 2007
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FORMULA
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T(n,k) = (2*n - 1) * 0^(n - k), 1<=k<=n. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Febr 11 2007
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EXAMPLE
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First few rows of the triangle are:
1;
0, 3;
0, 0, 5;
0, 0, 0, 7;
...
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CROSSREFS
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Cf. A127648, A127773, A127774, A005408, A014480, A001787.
Sequence in context: A133109 A130208 A108579 this_sequence A092669 A011400 A115013
Adjacent sequences: A127772 A127773 A127774 this_sequence A127776 A127777 A127778
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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), Jan 28 2007
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EXTENSIONS
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More terms from Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Febr 11 2007
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