OFFSET
1,2
EXAMPLE
If we repeatedly apply the "Oware" operation to 11, we get the period-4 cycle - denoting the pivot digit with parentheses - (1)1 -> 0(2) -> 1(1) -> (2)0 -> (1)1 , and no number less than 11 has a cycle of this length or longer.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Charlie Neder, Feb 26 2019
STATUS
approved