What is the next number in this sequence? 216; 108; 36; 9; 1.8; ?

Question

What number comes next in this sequence: 1 4 8 13 21 30 36 ??

Answer 1

216/2=108
108/3=36
36/4=9
9/5=1.8
1.8/6=0.3

Answer 2

216/2=108
108/3=36
36/4=9
9/5=1.8
1.8/6=0.3
Answer = 0.3