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A132478
A007318^(-1) * [4*A007318^(2) - 3*A000012].
1
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
OFFSET
0,2
COMMENTS
Row sums = A132479: (1, 5, 16, 32, 64, 128, 256, ...).
FORMULA
Inverse binomial transform of [4*A007318^(2) - 3*A000012], as infinite lower triangular matrices.
EXAMPLE
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;
...
CROSSREFS
Sequence in context: A208527 A209576 A055886 * A208918 A228782 A205125
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Aug 23 2007
STATUS
approved