OFFSET
1,2
FORMULA
EXAMPLE
First few rows of the triangle:
1;
2, 1;
4, 3, 1;
7, 6, 4, 1;
11, 10, 11, 5, 1;
16, 15, 25, 15, 6, 1;
22, 21, 50, 35, 22, 7, 1;
29, 28, 91, 70, 63, 28, 8, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Sep 23 2007
EXTENSIONS
a(21) = 1 inserted and more terms from Georg Fischer, Jun 08 2023
STATUS
approved