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Search: id:A133545
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| 1, 3, 1, 6, 5, 1, 11, 12, 7, 1, 20, 24, 20, 9, 1, 37, 45, 45, 30, 11, 1, 70, 83, 91, 76, 42, 13, 1, 135, 154, 175, 168, 119, 56, 15, 1, 264, 290, 330, 344, 288, 176, 72, 17, 1, 521, 555, 621, 675, 633, 465, 249, 90, 19, 1
(list; table; graph; listen)
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OFFSET
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1,2
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COMMENT
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Row sums = A133546: (1, 4, 12, 31, 74, 169,...). Left border = A006127: (1, 3, 6, 11, 20,...).
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FORMULA
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(A000012 * A007318 - A007318 * A000012) - A000012 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 1;
6, 5, 1;
11, 12, 7, 1;
20, 24, 20, 9, 1;
37, 45, 45, 30, 11, 1;
70, 83, 91, 76, 42, 13, 1;
...
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CROSSREFS
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Cf. A000012, A007318, A133546, A006127.
Sequence in context: A143858 A109954 A153641 this_sequence A153091 A124847 A127893
Adjacent sequences: A133542 A133543 A133544 this_sequence A133546 A133547 A133548
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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 15 2007
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