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1, 1, 1, 1, 3, 1, 1, 4, 5, 1, 1, 5, 9, 7, 1, 1, 6, 14, 16, 9, 1, 1, 7, 20, 30, 25, 11, 1, 1, 8, 27, 50, 55, 36, 13, 1, 1, 9, 35, 77, 105, 91, 49, 15, 1, 1, 10, 44, 112, 182, 196, 140, 64, 17, 1, 1, 11, 54, 156, 294, 378, 336, 204, 81, 19, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,5
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COMMENTS
| Row sums = A083329: (1, 2, 5, 11, 23, 47, 95,...).
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FORMULA
| A135225 + A007318 - A103451 as infinite lower triangular matrices.
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EXAMPLE
| First few rows of the triangle are:
1;
1, 1;
1, 3, 1;
1, 4, 5, 1;
1, 5, 9, 7, 1;
1, 6, 14, 16, 9, 1;
1, 7, 20, 30, 25, 11, 1;
1, 8, 27, 50, 55, 36, 13, 1;
...
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CROSSREFS
| Cf. A135225, A083329.
Sequence in context: A171145 A124020 A124234 * A104730 A131238 A133380
Adjacent sequences: A135223 A135224 A135225 * A135227 A135228 A135229
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 23 2007
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EXTENSIONS
| Corrected and extended by DELEHAM Philippe, Nov 14 2011
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