FWIW, it's not First Four any more. It's "Opening Round".
Big Ten teams and seeds
#1 Michigan
#2 Illinois
#2 Michigan St
#3 Purdue
#5 Indiana
#6 USC
#7 Nebraska
#8 UCLA
#8 Iowa
#10 Ohio St
#11 Oregon
#11 Wisconsin
It's wierd to see Gonzaga as a Pac-12 team.