Pembahasan Soal 3 Apabila ditanyakan barisan , maka: 1 = 1 + 4 → = 1 + 4 = 5 1 1 2 = 1 + 4 → = 1 + 16 = 17 2 2 11 3 = 1 + 4 → = 1 + 64 = 65 3 3 … Sehingga barisan ( ) = (5,17,65, … )