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Search: id:A133804
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| 1, 2, 1, 3, 3, 1, 4, 7, 4, 1, 5, 14, 10, 5, 1, 6, 25, 20, 16, 6, 7, 41, 35, 41, 21, 7, 8, 63, 56, 91, 56, 29, 8, 1, 9, 92, 84, 182, 126, 92, 36, 9, 1, 10, 129, 120, 336, 252, 246, 120, 46, 10, 1
(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 = A133124: (1, 3, 7, 16, 35, 74, 153,...). A133805 = binomial tansform of (A133566 * A133080).
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FORMULA
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Binomial transform of (A133080 * A133566), where A133080 * A133566 = an infinite lower triangular matrix with (1,1,1,...) in the main and subdiagonals, and (0,1,0,1,0,...) in the subsubdiagonal.
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EXAMPLE
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First few rows of the triangle are:
1;
2, 1;
3, 3, 1;
4, 7, 4, 1;
5, 14, 10, 5, 1;
6, 25, 20, 16, 6, 1;
7, 41, 35, 41, 21, 7, 1;
...
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CROSSREFS
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Cf. A133080, A133566, A133124.
Sequence in context: A098546 A126277 A055129 this_sequence A089944 A097351 A048600
Adjacent sequences: A133801 A133802 A133803 this_sequence A133805 A133806 A133807
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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), Sep 23 2007
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