54
The next two numbers are 26 & 78.
24
24
24
36
36
(6), 12, 18, 24
36
36 72 66
6, 12, 18, 24
21-3=18 18/2=9 9*3=27 that is the pattern so after the 36 it should be 33
They are 48, 96 and 192 because the numbers are being doubled after each other