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1, 1, 2, 1, 1, 3, 1, 2, 1, 4, 1, 1, 3, 1, 5, 1, 2, 1, 4, 1, 6, 1, 1, 3, 1, 5, 1, 7, 1, 2, 1, 4, 1, 6, 1, 8, 1, 1, 3, 1, 5, 1, 7, 1, 9, 1, 2, 1, 4, 1, 6, 1, 8, 1, 10
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| Row sums = A024206: (1, 3, 5, 8, 11, 15, 19,...). A128222 = A127701 * A128714.
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FORMULA
| A128174 * A127701 as infinite lower triangular matrices. By columns, k-th column = k, 1, k,...; k=1,2,3,...
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EXAMPLE
| First few rows of the triangle are:
1;
1, 2;
1, 1, 3;
1, 2, 1, 4;
1, 1, 3, 1, 5;
1, 2, 1, 4, 1, 6;
1, 1, 3, 1, 5, 1, 7;
...
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CROSSREFS
| Cf. A128174, A127701, A024206, A128222.
Sequence in context: A112377 A127704 A050873 * A175488 A115758 A124734
Adjacent sequences: A128218 A128219 A128220 * A128222 A128223 A128224
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Feb 19 2007
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