>>111
どうも、そんな式ではないっぽい

n: m
2: 0 (50%)
3: 1 (50%)
4: 1 (45.8333%)
5: 2 (43.3333%)
6: 2 (42.7778%)
7: 2 (41.4286%)
8: 3 (40.9821%)
9: 3 (40.5952%)
10: 3 (39.869%)
11: 4 (39.8413%)KG;ツ0A12: 4 (39.5515%)