3 n 2 8 July 8, 2019 16 32 64 128 3 n 2 81 3 n 2 )- 8n 5n 2 N 3n 2 8 2 3 n =( 8 27 4 If n 3 8 2 8 N 3 6n 2 8n 3 2n 4 2 n 8 3 n 8 2 27 25 3 n 2 ) - 8n 6 N 3 8n 2 12n 0 3 n 1 2 8 N 3 8n 2 N 3 8n 2 20n 13 N 3 8 - 2 5 N 3 8n 2 12n
