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A132819 A001263 * A127773. 1
1, 1, 3, 1, 9, 6, 1, 18, 36, 10, 1, 30, 120, 100, 15, 1, 45, 300, 500, 225, 21, 1, 63, 630, 1750, 1575, 441, 28, 1, 84, 1176, 4900, 7350, 4116, 784, 36, 1, 108, 2016, 11760, 26460, 24696, 9408, 1296, 45, 1, 135, 3240, 25200, 79380, 111132, 70560, 19440 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Row sums = A132820: (1, 4, 16, 65, 266, ...).
LINKS
FORMULA
A001263 * A127773 as infinite lower triangular matrices.
EXAMPLE
First few rows of the triangle are:
1;
1, 3;
1, 9, 6;
1, 18, 36, 10;
1, 30, 120, 100, 15;
1, 45, 300, 500, 225, 21;
...
CROSSREFS
Sequence in context: A337680 A077895 A105539 * A264364 A330509 A105545
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Sep 02 2007
STATUS
approved

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Last modified May 26 10:52 EDT 2024. Contains 372824 sequences. (Running on oeis4.)