16 1 4 8 July 8, 2019 16 32 64 128 16 1 81y 4 16 1 4 x 8 16 1 2 4 8 16 1 4 5 8 16 1 4 3 8 16 1 4 7 8 16 81 1 4 1 4 8 16 sequence Evaluate 81 16 1 4 6 4 16 1 8 1 4 8 9 16 1 2 4 8 16 sequence 1 2 4 8 16 series 1 2 4 8 16 pattern 4 1 8 3x 16