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A140581 Triangle read by rows, A054525 * A140256. 3
1, 1, 1, 2, 0, 1, 0, 1, 0, 1, 4, 0, 0, 0, 1, -3, 2, 1, 0, 0, 1, 6, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 1, -5, 4, 0, 0, 1, 0, 0, 0, 0, 1, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, -3, 0, 20, 1, 0, 0, 0, 0, 0, 1, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -7, 6, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,4
COMMENTS
Row sums = A014963: (1, 2, 3, 2, 5, 1, 7, 2, 3, 1, 11, 1, 13, 1,...).
LINKS
FORMULA
Mobius transform of triangle A140256 = A054525 * A140256; as infinite lower triangular matrices.
EXAMPLE
First few rows of the triangle are:
1;
1, 1;
2, 0, 1;
0, 1, 0, 1;
4, 0, 0, 0, 1;
-3, 2, 1, 0, 0, 1;
6, 0, 0, 0, 0, 0, 1;
0, 0, 0, 1, 0, 0, 0, 1;
0, 0, 2, 0, 0, 0, 0, 0, 1;
...
CROSSREFS
Sequence in context: A137276 A287234 A309938 * A137277 A039975 A358679
KEYWORD
tabl,sign
AUTHOR
Gary W. Adamson and Mats Granvik, May 17 2008
STATUS
approved

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)