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1, 2, 1, 2, 1, 1, 3, 2, 1, 1, 3, 2, 2, 1, 1, 4, 3, 2, 2, 1, 1, 4, 3, 3, 2, 2, 1, 1, 5, 4, 3, 3, 2, 2, 1, 1, 5, 4, 4, 3, 3, 2, 2, 1, 1, 6, 5, 4, 4, 3, 3, 2, 2, 1, 1
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Row sums = A004652 starting (1, 3, 4, 7, 9, 13, 16, 21,...).
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EXAMPLE
| First few rows of the triangle are:
1;
2, 1;
2, 1, 1;
3, 2, 1, 1;
3, 2, 2, 1, 1;
4, 3, 2, 2, 1, 1;
4, 3, 3, 2, 2, 1, 1;
5, 4, 3, 3, 2, 2, 1, 1;
...
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CROSSREFS
| Cf. A135839, A004652, A135841.
Sequence in context: A146290 A135539 A129264 * A173305 A131332 A059780
Adjacent sequences: A135837 A135838 A135839 * A135841 A135842 A135843
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KEYWORD
| nonn
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Dec 01 2007
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