ya ,I correct it now saw my answer...
and for counting n's 0 ,no.of states n+1
If question is no. of state divisible by 4 or 8 then answer = 4states
@thepeeyoosh question is no. of a divisible by 4 and 8 this condition to hold simultaneouly
if aaaa is accepted then these are divisible by 4 but not 8