2 2 4 1 3 6 July 8, 2019 16 32 64 128 1 2 2 4 3 6 fraction 2 1 4 3 6 5 X 2 2 x 4 3 1 6 2 1 4 3 6 7 2 1 4 3 6 8 2 2 dimethyl 1 3 dioxane 4 6 dione 2 2 3 4 9 x 1 6 9 2 7 2 x 3 )+ 4 1 6 2 3p 3 4 1 2 5 6p 2 dfrac 2 6 4 dfrac 1 3 2 2 6 trimethyl 4h 1 3 dioxin 4 one 2 4 6 trimethyl 1 3 5 2 4 6 trioxatriborinane
