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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 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
Row sums = A000337: (1, 5, 17, 49, 129, 321, ...).
LINKS
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
Sequence in context: A080303 A145369 A145370 * A316232 A366885 A212046
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 24 2007
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)