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Search: id:A131301
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| 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 4, 7, 1, 1, 1, 7, 7, 10, 1, 1, 1, 7, 16, 10, 13, 1, 1, 1, 10, 16, 28, 13, 16, 1, 1, 1, 10, 28, 28, 43, 16, 19, 1, 1, 1, 13, 28, 58, 43, 61, 19, 22, 1, 1
(list; table; graph; listen)
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OFFSET
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0,8
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COMMENT
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Row sums = A131300: (1, 2, 3, 7, 14, 27, 49, 86,...). Reversed triangle = A131299.
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FORMULA
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3*A046854 - 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, 1, 1;
1, 4, 1, 1;
1, 4, 7, 1, 1;
1, 7, 7, 10, 1, 1;
1, 7, 16, 10, 13, 1, 1;
...
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CROSSREFS
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Cf. A046854, A000012, A131299, A131300.
Sequence in context: A031278 A010328 A085731 this_sequence A083730 A008833 A063928
Adjacent sequences: A131298 A131299 A131300 this_sequence A131302 A131303 A131304
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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), Jun 27 2007
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