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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)
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OFFSET
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0,2
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COMMENTS
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Row sums = A000337: (1, 5, 17, 49, 129, 321, ...).
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LINKS
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FORMULA
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The square of triangle A130321 as an infinite lower triangular matrix.
A001787 in every column starting (1, 4, 12, 32, 80, 192, ...).
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EXAMPLE
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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;
...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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