i have 6 columns of numbers, each with different amounts. i need all the possible combinations of these where 3 numbers picked from the 1st column, then 1, 4, 1, 4 and 4 picked in the following columns. but no numbers can be repeated in their respective columns, so in the 1st column for example say the number 2 is in it. when it picks 3 numbers from that column, it can only pick number 2 once.
please explain like i know nothing.
Any help much appreciated. thanks.
Bookmarks