There happens to be a politician that might lie at any moment (this isn't unusual) but his conscience bothers him enough (now, that
is unusual!) so he won't say two lies in a row.
He said ten consecutive statements.
How many combinations of truths/lies can there be?
(In reply to re: Fibo again
while you posted your remark I've corrected a small typo-
maybe by re-reading you will manage to get it. If not I will gladly post a longer explanation.