6 n 3 1 4 July 8, 2019 16 32 64 128 6 3 li 1 0 n 4 2 he 6 3 n 7 )/ 4 1 2n 6 le n 3 frac 1 4 447 =- 6 3 n 1 N 8 3 6 1 4 2n 3 4n 5 )=- 6 n 3 )- 1 6 3 n 7 ))/ 4 1 2 * n 3 n 4 6 3 n 1 3n 2 6 7 n 1 )=- 2 4n 3 1 4 n 6 )= 1 4n 3 2 1 3 4 n 6 1 3 4n 6