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A131778
6*A065941 - 5*A049310.
4
1, 6, 1, 1, 6, 1, 6, -4, 12, 1, 1, 6, 3, 12, 1, 6, -9, 24, -2, 18, 1, 1, 6, 0, 24, 11, 18, 1, 6, -14, 36, -20, 60, 6, 24, 1, 1, 6, -8, 36, 15, 60, 25, 24, 1, 6, -19, 48, -58, 126, -15, 120, 20, 30, 1
OFFSET
1,2
COMMENTS
Row sums = A022097, a Fibonacci-like sequence starting (1, 7, 8, 15, 23, 38, ...).
FORMULA
6*A065941 - 5*A049310 as infinite lower triangular matrices.
EXAMPLE
First few rows of the triangle:
1;
6, 1;
1, 6, 1;
6, -4, 12, 1;
1, 6, 3, 12, 1;
6, -9, 24, -2, 18, 1;
1, 6, 0, 24, 11, 18, 1;
...
KEYWORD
tabl,sign
AUTHOR
Gary W. Adamson, Jul 14 2007
STATUS
approved