4 6 2 6 1 July 8, 2019 16 32 64 128 6 4 6 2 1 8 6 4 6 2 1 5 3 4 6 2 1 6 4 6 2 12 4 6 2 10 4 6 2 14 4 6 2 11 4 6 2 15 4 2 6 1 3 5 4 6 2 16 4 2 6 1 7 4 2 6 10 5 (( 6 x 4 2 6 10 4 hydroxy 2 2 6 6 tetramethylpiperidine 1 oxyl 6 3 4 2 1 6 as a fraction