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A127375
Triangle A126988 * A054521, as infinite lower triangular matrices.
0
1, 3, 0, 4, 1, 0, 7, 0, 1, 0, 6, 1, 1, 1, 0, 12, 2, 0, 0, 1, 0, 8, 1, 1, 1, 1, 1, 0, 15, 0, 3, 0, 1, 0, 1, 0, 13, 4, 0, 1, 1, 0, 1, 1, 0, 18, 2, 3, 2, 0, 0, 1, 0, 1, 0, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 28, 4, 3, 0, 3, 0, 1, 0, 0, 0, 1, 0, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0
OFFSET
1,2
COMMENTS
Left column gives A000203.
Row sums give A018804.
EXAMPLE
First few rows of the triangle are:
1;
3, 0;
4, 1, 0;
7, 0, 1, 0;
6, 1, 1, 1, 0;
12, 2, 0, 0, 1, 0;
8, 1, 1, 1, 1, 1, 0;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jan 12 2007
EXTENSIONS
a(17) = 2 inserted and more terms from Georg Fischer, May 29 2023
STATUS
approved