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1, 2, 1, 4, 3, 1, 7, 6, 4, 1, 12, 11, 9, 5, 1, 20, 19, 17, 13, 6, 1, 33, 32, 30, 26, 18, 7, 1, 54, 53, 51, 47, 39, 24, 8, 1, 88, 87, 85, 81, 73, 57, 31, 9, 1, 143, 142, 140, 136, 128, 112, 81, 39, 10, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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COMMENTS
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Left column = A000071, (Fibonacci numbers - 1) starting with F(3): (1, 2, 4, 7, 12, 20, ...).
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LINKS
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FORMULA
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A004070 * A000012 as infinite lower triangular matrices. Partial row sums of A004070 starting from the right.
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EXAMPLE
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First few rows of the triangle:
1;
2, 1;
4, 3, 1;
7, 6, 4, 1;
12, 11, 9, 5, 1;
20, 19, 17, 13, 6, 1;
33, 32, 30, 26, 18, 7, 1;
...
Row 3 = (7, 6, 4, 1) = partial sums starting from the right of (1, 2, 3, 1), being row 3 of A004070.
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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