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Search: id:A133544
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| 1, 1, 2, 1, 4, 4, 1, 6, 12, 7, 1, 8, 24, 28, 12, 1, 10, 40, 70, 60, 13, 1, 12, 60, 140, 180, 78, 14, 1, 14, 84, 245, 420, 273, 98, 15, 1, 16, 112, 392, 840, 728, 392, 120, 16, 1, 18, 144, 588, 1512, 1638, 1176, 540, 144, 18
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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Right border = A052474: (1, 2, 4, 7, 12, 13, 14, 15, 16, 18, 20,...). Row sums = A057153: (1, 3, 9, 26, 73, 194, 485, 1150,...).
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FORMULA
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Binomial transform of A052474 as a diagonalized matrix (A052474 as the diagonal of an infinite lower triangular matrix and the rest zeros).
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EXAMPLE
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First few rows of the triangle are:
1;
1, 2;
1, 4, 4;
1, 6, 12, 7;
1, 8, 24, 28, 12;
1, 10, 40, 70, 60, 13;
1, 12, 60, 140, 180, 78, 14;
...
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CROSSREFS
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Cf. A052474, A057153.
Sequence in context: A136600 A136672 A097750 this_sequence A013609 A154558 A008572
Adjacent sequences: A133541 A133542 A133543 this_sequence A133545 A133546 A133547
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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 14 2007
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