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1, 1, 1, 2, 4, 1, 2, 8, 7, 1, 2, 11, 17, 10, 1, 2, 14, 29, 29, 13, 1, 2, 17, 44, 59, 44, 16, 1, 2, 20, 62, 104, 104, 62, 19, 1, 2, 23, 83, 167, 209, 167, 83, 22, 1, 2, 26, 107, 251, 377, 377, 251, 107, 25, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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COMMENTS
| Row sums = A077802, (1, 2, 7, 18, 41, 88,...).
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FORMULA
| 3*A007318 - A097806 - A000012 as infinite lower triangular matrices.
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EXAMPLE
| First few rows of the triangle are:
1;
1, 1;
2, 4, 1;
2, 8, 7, 1;
2, 11, 17, 10, 1;
2, 14, 29, 29, 13, 1;
...
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CROSSREFS
| Cf. A007318, A097806, A000012, A077802.
Sequence in context: A101229 A057176 A194671 * A050980 A053451 A190555
Adjacent sequences: A131395 A131396 A131397 * A131399 A131400 A131401
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 05 2007
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