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1, 2, 1, 4, 1, 1, 5, 2, 1, 1, 6, 2, 2, 1, 1, 7, 2, 2, 2, 1, 1, 8, 2, 2, 2, 2, 1, 1, 9, 2, 2, 2, 2, 2, 1, 1, 10, 2, 2, 2, 2, 2, 2, 1, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Row sums = A008486: (1, 3,6, 9, 12, 15, 18,...). a131034 = A129686 * A051340
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FORMULA
| A051340 * A129686 as infinite lower triangular matrices.
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EXAMPLE
| First few rows of the triangle are:
1;
2, 1;
4, 1, 1;
5, 2, 1, 1;
6, 2, 2, 1, 1;
7, 2, 2, 2, 1, 1;
8, 2, 2, 2, 2, 1, 1;
9, 2, 2, 2, 2, 2, 1, 1;
10, 2, 2, 2, 2, 2, 2, 1, 1;
...
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CROSSREFS
| Cf. A051340, A129686, A008486.
Sequence in context: A162944 A140582 A062866 * A118745 A131034 A130313
Adjacent sequences: A131032 A131033 A131034 * A131036 A131037 A131038
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 10 2007
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