Find the odd man out 864, 420, 200, 93, 40, 16, 6

Find the odd man out 864, 420, 200, 93, 40, 16, 6

Quiz

Answer/Solution

93

Steps/Work

6x2+4=16
16x2+8=40
40x2+12=92
92x2+16=200.. and so on. 93
ANSWER:D