1 4 9x 5 2 July 8, 2019 16 32 64 128 1 2 4 9x 5 6 4 5 9x 1 8 x 2 9x 5 1 4 16x 20 7x 4 =- 2x 1 9x 5 9x 5 2x 1 )=- 3 x 4 1 4 9 16 and 25 sequence 5 + 9 = 14