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Search: id:A131254
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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; listen)
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OFFSET
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0,2
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COMMENT
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Left column = A000071, (Fibonacci numbers - 1) starting with F(3): (1, 2, 4, 7, 12, 20,...).
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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 are:
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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Cf. A004070, A000012, A000071.
Sequence in context: A027421 A131252 A133805 this_sequence A134626 A115450 A109435
Adjacent sequences: A131251 A131252 A131253 this_sequence A131255 A131256 A131257
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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 23 2007
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