1. 1,3,4,6,11,19,( )
A.21 B.23 C.25 D.34
2. 1,2,9,121,( )
A.251 B.44 C.16900 D.960
3. 5,6,6,9,( ),90
A.12 B.15 C.18 D.21
4. 1,1,2,6,( )
A.19 B.7 C.3 D.24
5. -2,-1,1,5,( ),29
A.7 B.9 C.11 D.13

1. 1,3,4,6,11,19,( )
A.21 B.23 C.25 D.34
2. 1,2,9,121,( )
A.251 B.44 C.16900 D.960
3. 5,6,6,9,( ),90
A.12 B.15 C.18 D.21
4. 1,1,2,6,( )
A.19 B.7 C.3 D.24
5. -2,-1,1,5,( ),29
A.7 B.9 C.11 D.13