3 3n 2 July 8, 2019 16 32 64 128 3 (- 3n 2 )+ 5 3 3n 26n 1 is divisible by 3 3n 26n 1 3 3n 2 )= 5n 18 3 3n 2 )= 0 3 3n 21 3 3n 243 3 3n 234 3n 3 25 n 3n 3 2n 4 3n 3 )( 2n 1 3n 3 27 3n 3 2n 3n 3 2n 5 2n 3 3n 2
