1 4 9 x 6 2 5 July 8, 2019 16 32 64 128 8 9 x 4 5 6 1 2 3 9 x 4 5 6 1 2 3 8 9 x 4 5 6 1 2 4 5 * x 1 6 9 2 2x 1 4 9 16 and 25 sequence 1 4/9 x 6 1/4 x 9 1/2
