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Search: id:A132823
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| 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 2, 4, 2, 1, 1, 3, 8, 8, 3, 1, 4, 13, 18, 13, 4, 1, 1, 5, 19, 33, 33, 19, 5, 1, 1, 6, 26, 54, 68, 54, 26, 6, 1, 1, 7, 34, 82, 124, 124, 82, 34, 7, 1
(list; table; graph; listen)
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OFFSET
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0,12
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COMMENT
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Row sums = A132824: (1, 2, 2, 4, 10, 24, 54, 116, 242,...).
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FORMULA
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A007318 + 2*A103451 - 2*A000012 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 0, 1;
1, 1, 1, 1;
1, 2, 4, 2, 1;
1, 3, 8, 8, 3, 1;
1, 4, 13, 18, 13, 4, 1;
1, 5, 19, 33, 33, 19, 5, 1;
1, 6, 26, 54, 68, 54, 26, 6, 1;
1, 7, 34, 82, 124, 124, 82, 34, 7, 1;
...
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CROSSREFS
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Cf. A007318, A103451, A000012, A132824.
Sequence in context: A105023 A052285 A046858 this_sequence A059317 A087266 A079046
Adjacent sequences: A132820 A132821 A132822 this_sequence A132824 A132825 A132826
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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 02 2007
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