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Search: id:A134239
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| 1, 4, 2, 6, 9, 3, 8, 20, 16, 4, 10, 35, 45, 25, 5, 12, 54, 96, 84, 36, 6, 14, 77, 175, 210, 140, 49, 7, 16, 104, 288, 440, 400, 216, 64, 8, 18, 135, 441, 819, 945, 693, 315, 81, 9, 20, 170, 640, 1400, 1960, 1820, 1120, 440, 100, 10
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A128543: (1, 6, 18, 48, 120, 288,...)
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FORMULA
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A127899(unsigned) * A007318. Triangle, T(n,k) = (n+1) * A029635(n,k).
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EXAMPLE
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First few rows of the triangle are:
1;
4, 2;
6, 9, 3;
8, 20, 16, 4;
10, 35, 45, 25, 5;
12, 54, 96, 84, 36, 6;
14, 77, 175, 210, 140, 49, 7;
...
Row 3 = (8, 20, 16, 4) = 4 * (2, 5, 4, 1), where (2, 5, 4, 1) = row 3 of A029653, (2,1) Pascal's triangle.
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CROSSREFS
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Cf. A127899, A029653, A128543.
Sequence in context: A105365 A077157 A114478 this_sequence A136390 A019610 A058613
Adjacent sequences: A134236 A134237 A134238 this_sequence A134240 A134241 A134242
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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), Oct 14 2007
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EXTENSIONS
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Corrected by Philippe DELEHAM, Oct 17 2007
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