1到8能组成多少3组数

123/124/125/126/127/128/132/134/135/136/137/138/142/143/145/146/147/148/152/153/154/156/187/158/162/163/164/165/167/168/172/173/174/175/176/178/182/183/184/185/186/187/213/214/2154216/247/218/231/234/235/236/237/238/241/243/245/246/247/248/251/253/254/256/257/258...

语音朗读：