From the question, we can know that the first line is a multiple of 2, because the first line is 2, so fill in 2 4 6 8 10.

The second line is all multiples of 2+1, and because it is 9 in front and 3 in the back, it is 1 1 9 5 3 1.

The third line is half of X, because the middle is116, so fill in1/41/81/64.