Loop condition not understanding

#1

in the condition: Counter<=n+1
why +1 is added?

#2

hey @kavit
if you don’t take
counter<=n+1
if counter<=n
in this case
print till (n-1)th fib
because indexing 0 bases

Fib no: 0 1 1 2 3 5 8
index : o 1 2 3 4 5 6