OFFSET
0,2
COMMENTS
Row sums = A000337: (1, 5, 17, 49, 129, 321, ...).
FORMULA
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
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 24 2007
STATUS
approved