OFFSET

1,4

EXAMPLE

For n = 2, the three bracelets are 00, 10, 11. Their progressions are as follows:

00 -> 11 -> 11 -> 11 -> ...

10 -> 01 -> 10 -> 01 -> ...

11 -> 11 -> 11 -> 11 -> ...

a(2)=1 because only 01 eventually enters a cycle.

CROSSREFS

KEYWORD

nonn,more

AUTHOR

Angelo Rosso, Nov 02 2023

EXTENSIONS

a(21)-a(25) from Pontus von BrÃ¶mssen, Nov 03 2023

STATUS

approved