1 4 9 x 2 4 7 July 8, 2019 16 32 64 128 1 4 9 x 2 4 7 as a fraction 1 4 3 x )- 0 9 x 2 )= 4 7 1 5 9 х 2 4 7 2 1 4 x 7 9 x 3 4 1 4 9 16 and 25 sequence 1/4 x 9 1/2 1 4/9 x 2 1/4