OFFSET
1,2
EXAMPLE
For n = 3: 11 = 11 = 5 + 6 = 1 + 2 + 3 + 5.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Ilya Gutkovskiy, Mar 11 2023
EXTENSIONS
a(21)-a(25) from Michael S. Branicky, Mar 12 2023
STATUS
approved