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Search: id:A137629
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| 1, 2, 1, 4, 0, 1, 7, 2, 0, 1, 11, 2, 0, 0, 1, 18, 4, 2, 0, 0, 1, 26, 4, 2, 0, 0, 0, 1, 39, 9, 2, 2, 0, 0, 0, 1, 55, 9, 4, 2, 0, 0, 0, 0, 1, 79, 16, 4, 2, 2, 0, 0, 0, 0, 1, 106, 18, 6, 2, 2, 0, 0, 0, 0, 0, 1, 150, 29, 9, 4, 2, 2, 0, 0, 0, 0, 0, 1
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = A137630: (1, 3, 5, 10, 14, 25, 33, 53, 71, 104,...). Left border = A137631: (1, 2, 4, 7, 11, 18, 26, 39, 55, 79,...).
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FORMULA
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Square of the partition triangle
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EXAMPLE
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First few rows of the triangle are:
1;
2, 1;
4, 0, 1;
7, 2, 0, 1;
11, 2, 0, 0, 1;
18, 4, 2, 0, 0, 1;
26, 4, 2, 0, 0, 0, 1;
39, 9, 2, 2, 0, 0, 0, 1;
...
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CROSSREFS
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Cf. A016794, A137630, A137631.
Sequence in context: A127192 A122141 A091604 this_sequence A087569 A048614 A001442
Adjacent sequences: A137626 A137627 A137628 this_sequence A137630 A137631 A137632
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 31 2008
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