OFFSET
1,5
EXAMPLE
For n = 4, the six bracelets are 0000, 1000, 1100, 1010, 1110, 1111. a(4)=1 because only 1100 eventually enters a cycle that is not 0000 -> 0000.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Angelo Rosso, Jul 27 2022
EXTENSIONS
Definition clarified and corrected by Angelo Rosso, Nov 02 2023
Term 2 corrected by Angelo Rosso, Nov 02 2023
a(21)-a(25) from Pontus von Brömssen, Nov 03 2023
STATUS
approved