2^n 5n 1 July 8, 2019 16 32 64 128 2 n 5n 1 N 2 5n 14 0 N 2 5n 14 N 2 5n 10 N 2 5n 18 N 2 5n 10 0 2n 2 5n 12 2n 2 5n 12 0 2n 2 5n 1 2n 2 5n 18 2n 2 5n 13 0 2n 2 5n 13 5 n 2 )= 5n 10 N 2 5n 12 n 6 Sn n 2 5n 19