OFFSET
1,2
COMMENTS
FORMULA
EXAMPLE
Triangle begins:
1;
3, 1;
5, 3, 1, 1;
8, 5, 3, 3, 1, 1, 1;
10, 8, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1;
14, 10, 8, 8, 5, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1;
...
For n = 5 the length of row 5 is A000070(4) = 12.
The sum of row 5 is 10 + 8 + 5 + 5 + 3 + 3 + 3 + 1 + 1 + 1 + 1 + 1 = 42, equaling A284870(5).
KEYWORD
nonn,tabf
AUTHOR
Omar E. Pol, Jan 10 2021
STATUS
approved