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A104796
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Triangle T(n,k) = (n-k)*Fib(n-k), n>=1, 0<=k<n, read by rows.
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0
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1, 4, 1, 9, 4, 1, 20, 9, 4, 1, 40, 20, 9, 4, 1, 78, 40, 20, 9, 4, 1, 147, 78, 40, 20, 9, 4, 1, 272, 147, 78, 40, 20, 9, 4, 1, 495, 272, 147, 78, 40, 20, 9, 4, 1, 890, 495, 272, 147, 78, 40, 20, 9, 4, 1, 1584, 890, 495, 272, 147, 78, 40, 20, 9, 4, 1, 2796, 1584, 890, 495, 272
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Repeatedly writing the sequence A023607 backwards.
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FORMULA
| T(n,k) = A023607(n-k); a(n) = A023607(A004736(n)).
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EXAMPLE
| First few rows of the triangle are:
1;
4, 1;
9, 4, 1;
20, 9, 4, 1;
40, 20, 9, 4, 1;
78, 40, 20, 9, 4, 1;
...
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CROSSREFS
| Row sums are in A094584.
Cf. A104762, A104765, A000045.
Sequence in context: A153265 A085691 A055461 * A132020 A175643 A143864
Adjacent sequences: A104793 A104794 A104795 * A104797 A104798 A104799
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Mar 26 2005
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EXTENSIONS
| Edited by Ralf Stephan, Apr 05 2009
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