OFFSET
1,2
COMMENTS
Row sums = A084990 starting (1, 6, 17, 36, 65, 106, ...).
FORMULA
EXAMPLE
First few rows of the triangle:
1;
5, 1;
11, 5, 1;
19, 11, 5, 1;
29, 19, 11, 5, 1;
41, 29, 19, 11, 5, 1;
55, 41, 29, 19, 11, 5, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jul 14 2007
EXTENSIONS
Sign in definition and a(41) corrected; more terms from Georg Fischer, Jun 05 2023
STATUS
approved