2,0,3,2,6,6, () what number should be filled in the brackets to conform to the law of the previous sequence?

2,0,3,2,6,6, () what number should be filled in the brackets to conform to the law of the previous sequence?

The difference between odd and odd terms is 1,3, (5)
The difference between even terms is 2,4
So 6 + 5 = 11