Grouping a set of 9 in (0,3,6)(1,4,7)and (2,5,8) order

by Hamide Rihtim

Jan 12, 2015

Hello,

Can anyone help me with arranging my sets? i had a set of 9, i used graft tree and explode tree; now, i have 9 sets but i cannot combine them in different orders such as (1,4,7)(2,5,8)and (3,6,9).

Thanks :)