7,13,39,61,103,()
A.141
B.164
C.185
D.193
11,13,16,21,28,() A.7 B.39 C.41 D.47
7,13,39,61,103,()A.141 B.164 C.185 D.193
-5,13,-29,()A.-61 B.-39 C.39 D.61