M 2 n 2 m 1 n 1 July 8, 2019 16 32 64 128 2m 1 2 2n 1 2 4 m n m n 1 1 2 m+ (- 1 )/ n 1 1 m 1 2 n 8 4 1 m 2 4 1 m )( n 1 )+( n 1 2 M n 1 2 1 2 2 ( − ) M-n/2mn + 2/m-n
