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Search: id:A128176
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| 1, 1, 1, 2, 2, 1, 2, 4, 3, 1, 3, 6, 7, 4, 1, 3, 9, 13, 11, 5, 1, 4, 12, 22, 24, 16, 6, 1, 4, 16, 34, 46, 40, 22, 7, 1, 5, 20, 50, 80, 86, 62, 29, 8, 1, 5, 25, 70, 130, 166, 148, 91, 37, 9, 1
(list; table; graph; listen)
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OFFSET
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1,4
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COMMENT
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Row sums = A000975: (1, 2, 5, 10, 21, 42, 85, 170,...) A007318 * A128174 = A128175
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FORMULA
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A128174 * A007318 (Pascal's triangle), as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
2, 2, 1;
2, 4, 3, 1;
3, 6, 7, 4, 1;
3, 9, 13, 11, 5, 1;
4, 12, 22, 24, 16, 6, 1;
4, 16, 34, 46, 40, 22, 7, 1;
...
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CROSSREFS
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Cf. A000975, A128175, A007318.
Sequence in context: A066954 A029262 A129687 this_sequence A035374 A048299 A098691
Adjacent sequences: A128173 A128174 A128175 this_sequence A128177 A128178 A128179
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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), Feb 17 2007
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