1 2 3 7 4 July 8, 2019 16 32 64 128 1 2 3 7 4 9 1 2 3 7 43 1 2 3 7 4 5 1 2 3 4 7 8 1 2 3 4 7 8 sequence 1 2 3 4 7 6 1 2 3 4 7 8 hxcdf 1 2 3 4 7 8-hexachloro dibenzo-p-dioxin 1 2 3 4 7 8 as a fraction 1 2 3 4 7 as a fraction 2 1 3 4 7 sequence 1 2 x 5 3 =- 7 4 1 2 x 7 3 4 1 2 times 7 3 4 1 2 x 3 4x 7
