hi guys

i'm interested in math but not so well inclined..

just looking for a formula to complete this question i've got in my head. trying to make my day easier and needing some assistance!

i need to divide a certain number of things into groups.

each group can be either 2 or 3 objects..

total number of groups has to be divisible by 4

is there a formula i can wrap up all this info in neatly? i'm looking to solve it myself of course.

thanks a bunch =)