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Search: id:A127780
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| 1, 3, 6, 5, 10, 15, 7, 14, 21, 28, 9, 18, 27, 36, 45, 11, 22, 33, 44, 55, 66, 13, 26, 39, 52, 65, 78, 91, 15, 30, 45, 60, 75, 90, 105, 120
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Odd number transform of A002260.
Row sums = A002414: (1, 9, 30, 70, 135,...)
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EXAMPLE
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First few rows of the triangle are:
1;
3, 6;
5, 10, 15;
7, 14, 21, 28;
9, 18, 27, 36, 45;
11, 22, 33, 44, 55, 66;
...
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CROSSREFS
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Cf. A127775, A002260, A002414.
Sequence in context: A053628 A046083 A123089 this_sequence A118413 A096620 A093419
Adjacent sequences: A127777 A127778 A127779 this_sequence A127781 A127782 A127783
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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 28 2007
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