N 3 2 1 July 8, 2019 16 32 64 128 N 3 2 10 N /- 3 2 =- 18 N 3 2 16 N 3 2 12 N 2 3 1 4 N 3 6n 2 11n 6 N 3 1 2 12 N 3 )( 2n 2 1 3 n 2 1 10 N 3 l 2 ml =- 1 1 n 3 2 converge N 3 l 2 m 1 N 3 1 6 1 2 N 3 4n 2 4n 1
