(1)每次框两个,和有3,5,7,9,11,13,15,17,19共9(个).
每次框3个,和有6,9,12,15,18,21,24,27共8(个)
每次框4个,和有10,14,18,22,26,30,34共(7个)
每次框6个,和有21,27,33,39,45共5(个)
(2)平移的次数+框的个数=全部数+1.
和的个数=平移次数+1.
(1)每次框两个,和有3,5,7,9,11,13,15,17,19共9(个).
每次框3个,和有6,9,12,15,18,21,24,27共8(个)
每次框4个,和有10,14,18,22,26,30,34共(7个)
每次框6个,和有21,27,33,39,45共5(个)
(2)平移的次数+框的个数=全部数+1.
和的个数=平移次数+1.