1 4 9 7 10 July 8, 2019 16 32 64 128 1 7 x + 4 9 10 1 4 9 10y 3 5y 7 8 1 4 7 9 10 1 4 7 9 10 sequence formula 1 4 9 10y 3 5y 7 8 simplified 1 7 dibromo 3 4 9 10 perylenetetracarboxylic dianhydride 1 7 dibromo 3 4 9 10 tetracarboxylic acid dianhydride 1 pedro 4 7 8 9 10 Order 8 9 1 4 and 7 10 from least to greatest 1 juan 4 7 8 9 10
