2 2 4 1 3 8 July 8, 2019 16 32 64 128 1 2 2 4 3 8 series 2 1 4 3 8 in fraction 2 1 4 3 8 5 2 4 3 1 8 7 2 2 3 x 4 1 8 2 1 4 vs 2 3 8 2 1 4 plus 2 3 8 1 2 2 4 3 8 n 2 n 2 1 4 3 8 in fraction form 2 1 4 to 2 3 8 exhaust adapter