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A130297
A130296^2.
1
1, 4, 1, 8, 2, 1, 13, 3, 2, 1, 19, 4, 3, 2, 1, 26, 5, 4, 3, 2, 1, 34, 6, 5, 4, 3, 2, 1, 43, 7, 6, 5, 4, 3, 2, 1, 53, 8, 7, 6, 5, 4, 3, 2, 1, 64, 9, 8, 7, 6, 5, 4, 3, 2, 1
OFFSET
1,2
COMMENTS
Left border = A034856: (1, 4, 8, 13, 19, 26, 34, ...).
Row sums = A028387: (1, 5, 11, 19, 29, 41, 55, ...).
FORMULA
Square of A130296 as an infinite lower triangular matrix.
EXAMPLE
First few rows of the triangle:
1;
4, 1;
8, 2, 1;
13, 3, 2, 1;
19, 4, 3, 2, 1;
26, 5, 4, 3, 2, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 20 2007
STATUS
approved