m
20000 30000 40000 50000 60000132000
40000 60000 120000 200000 300000660000
80000 120000 360000 800000 153
160000 240000 7,515
320000480000 3 8 37575
640000 9 32 1875375
2 27 128 93751875
4 81 512 468751
8 243 2048 245