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1, 4, 1, 4, 11, 1, 4, 9, 18, 1, 4, 19, 15, 25, 1, 4, 17, 52, 22, 32, 1, 4, 27, 45, 110, 30, 39, 1, 4, 25, 102, 95, 200, 39, 46, 1, 4, 35, 91, 287, 175, 329, 49, 53, 1, 4, 33, 168, 252, 672, 294, 504, 60, 60, 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 = A132479: (1, 5, 16, 32, 64, 128, 256, ...).
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LINKS
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FORMULA
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Inverse binomial transform of [4*A007318^(2) - 3*A000012], as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle:
1;
4, 1;
4, 11, 1;
4, 9, 18, 1;
4, 19, 15, 25, 1;
4, 17, 52, 22, 32, 1;
4, 27, 45, 110, 30, 39, 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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