4 6 3 2 1 July 8, 2019 16 32 64 128 6 4 3 2 1 5 4 6 3 10 2 4 6 2 3 x 1 5 7 6 4 3 2 1 8 6 4 3 2 1 9 6 4 3 2 1 4 3 6 x 2 1 9 12 4 6 3 2 X 4 6 2x 3 2 1 6 5 4 3 2 1 trend 6 5 4 3 2 1 formula 6 5 4 3 2 1 grocery method 6 4 x 3 )= 2 x 1 2 6 * 4 3 13 6 5 4 3 2 1 song