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Search: id:A133934
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| 1, 1, 2, 1, 4, 1, 1, 6, 3, 4, 1, 8, 6, 16, 1, 1, 10, 10, 40, 5, 6, 1, 12, 15, 80, 15, 36, 1, 1, 14, 21, 140, 35, 126, 7, 8, 1, 16, 28, 224, 70, 336, 28, 64, 1, 1, 18, 36, 336, 126, 756, 84, 288, 9, 10
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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Row sums = A129954: (1, 3, 6, 14, 32, 72, 160,...).
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FORMULA
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Binomial transform of an infinite lower triangular matrix, with (1, 2, 1, 4, 1, 6,...) in the main diagonal and zeros elsewhere.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 2;
1, 4, 1;
1, 6, 3, 4;
1, 8, 6, 16, 1;
1, 10, 10, 40, 5, 6;
1, 12, 15, 80, 15, 36, 1;
...
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CROSSREFS
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Cf. A129954.
Sequence in context: A124845 A127625 A124844 this_sequence A055327 A105260 A099510
Adjacent sequences: A133931 A133932 A133933 this_sequence A133935 A133936 A133937
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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), Sep 29 2007
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