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A134513
1
1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 3, 3, 1, 1, 3, 3, 4, 4, 1, 1, 1, 6, 6, 5, 5, 1, 1, 4, 4, 10, 10, 6, 6, 1, 1, 1, 10, 10, 15, 15, 7, 7, 1, 1, 5, 5, 20, 20, 21, 21, 8, 8, 1, 1
OFFSET
1,7
COMMENTS
Row sums = A062114: (1, 2, 3, 6, 9, 16, 25, 42, 67, ...).
Triangle A046854 = A097806 * A049310.
FORMULA
A049310 * A097806 as infinite lower triangular matrices.
EXAMPLE
First few rows of the triangle:
1;
1, 1;
1, 1, 1;
2, 2, 1, 1;
1, 3, 3, 1, 1;
3, 3, 4, 4, 1, 1;
1, 6, 6, 5, 5, 1, 1;
4, 4, 10, 10, 6, 6, 1, 1;
1, 10, 10, 15, 15, 7, 7, 1, 1;
...
CROSSREFS
KEYWORD
nonn,tabl,more
AUTHOR
Gary W. Adamson, Oct 28 2007
STATUS
approved