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A130322
A130321^2.
2
1, 4, 1, 12, 4, 1, 32, 12, 4, 1, 80, 32, 12, 4, 1, 192, 80, 32, 12, 4, 1, 448, 192, 80, 32, 12, 4, 1, 1024, 448, 192, 80, 32, 12, 4, 1, 2304, 1024, 448, 192, 80, 32, 12, 4, 1
OFFSET
0,2
COMMENTS
Row sums = A000337: (1, 5, 17, 49, 129, 321, ...).
FORMULA
The square of triangle A130321 as an infinite lower triangular matrix.
A001787 in every column starting (1, 4, 12, 32, 80, 192, ...).
EXAMPLE
First few rows of the triangle:
1;
4, 1;
12, 4, 1;
32, 12, 4, 1;
80, 32, 12, 4, 1;
192, 80, 32, 12, 4, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 24 2007
STATUS
approved