OFFSET
0,2
COMMENTS
Row sums = A078485 starting (1, 7, 15, 31, 63, 127, ...).
EXAMPLE
First few rows of the triangle:
1;
3, 4;
3, 8, 4;
3, 12, 12, 4;
3, 16, 24, 16, 4;
3, 20, 40, 40, 20, 4;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Oct 05 2007
EXTENSIONS
a(15) = 3 inserted and more terms from Georg Fischer, Jun 07 2023
STATUS
approved