Fn = 4 + 1 - 2 + 12 + 3 - 6 + 36 + 9 - 18 ------ n terms.
If 2Fn + 3 = 816 then what is the value of n?
(1) 17
(2) 23
(3) 69
(4) 42
(5) none of these
If 2Fn + 3 = 816 then what is the value of n?
(1) 17
(2) 23
(3) 69
(4) 42
(5) none of these













