3 1 7 1 5 7 July 8, 2019 16 32 64 128 3 1 7 1 5 7 as a fraction 3 1 7 x 1 5 7 3 2 7 1 5 7 3 4 7 1 5 7 3 6 7 1 5 7 1 3 5 7 tetravinyl 1 3 5 7 tetramethylcyclotetrasiloxane 3 2x 1 )+ 7 5 x 1 )+ 7 1 7 4x 5 1 7 2x 3 Octahydro 1 3 5 7 tetranitro 1 3 5 7 tetrazocine
