OFFSET
1,2
COMMENTS
Row sums = A127736: (1, 7, 21, 46, 85, 141, 217, ...).
FORMULA
EXAMPLE
First few rows of the triangle:
1;
4, 3;
8, 8, 5;
13, 14, 12, 7;
19, 21, 20, 16, 9;
26, 29, 29, 26, 20, 11;
...
CROSSREFS
KEYWORD
dead
AUTHOR
Gary W. Adamson, Oct 23 2007
EXTENSIONS
a(6) corrected and more terms from Georg Fischer, Jun 05 2023
STATUS
approved