2 1 25 3 July 8, 2019 16 32 64 128 2 25 1 35 2 25 1 30 1 2 25 32 2 25 1 3 4 1 2 25 36 2 25 1 39 2 25 1 37 2 25 1 31 1 2 3 25 number series sum 1 2 3 25 6 1 2 x 25 36 125 x 2 =( 1 25 3x 2 7 25 1 3 1 2 of 25 3 8 3x 2 1 25