The solution of the recursion relation an+ 1 In 2 0, is an 2(n+1)2 O a) (-1)"3" a0 2" [(n+1)!' O b) (-1)"3" ap 2" (n!) Oc (-1)"3" a0 2" (n+1 ) O d) -3" ap 2" ( n!) 2 O e) None of these