For this chain-of-thought reasoning and answer, what was the question?
4 x 1 + 2 = 6
6 x 2 + 3 = 15
15 x 3 + 4 = 49
49 x 4 + 5 = 210
 A: (C)
Q: Find the odd man out 4, 5, 15, 49, 201, 1011, 6073
Options:
(A) 10
(B) 7
(C) 5
(D) 2
(E) 3