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Search: id:A131350
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| 1, 2, 1, 1, 4, 1, 2, 4, 6, 1, 1, 8, 9, 8, 1, 2, 7, 20, 16, 10, 1, 1, 12, 24, 40, 25, 12, 1, 2, 10, 42, 60, 70, 36, 14, 1, 1, 16, 46, 112, 125, 112, 49, 16, 1, 2, 13, 72, 148, 252, 231, 168, 64, 18, 1
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A0099036 starting (1, 3, 6, 13, 27, 56, 115,...).
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EXAMPLE
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First few rows of the triangle are:
1;
2, 1;
1, 4, 1;
2, 4, 6, 1;
1, 8, 9, 8, 1;
2, 7, 20, 16, 10, 1;
1, 12, 24, 40, 25, 12, 1;
...
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CROSSREFS
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Cf. A007318, A049310, A131350.
Sequence in context: A005131 A105477 A127709 this_sequence A131087 A105475 A136321
Adjacent sequences: A131347 A131348 A131349 this_sequence A131351 A131352 A131353
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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), Jul 02 2007
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