I am really stuck on this
In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in front of their sibling?
+274 Consider looking at these solutions here: https://web2.0calc.com/questions/counting_35794#:~:text=Therefore%2C%20there%20are%20564%20ways,in%20front%20of%20their%20sibling.
