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In 2005, while working with the Duke Basketball Report, I wrote a simple program to look at the different seeding combinations with the unbalanced schedule created by the ACC expansion. I looked at the rules the ACC uses, and put that algorithm into a program.
For the first two years, I published the results on DBR. They are recreated here. The remaining years are published here.
Starting in 2009, I began examining the seeds more than one week before the end of the season. After the penultimate weekend, there are ususally no more than 12 games to be played, which results in 4096 possible combinations. In 2009, I started with 28 games to be played, with 268,435,456 different possible combinations. Downloading all the possible combinations for 12 games is a 12 MB file; so for when there are more games than 12 to be played, I will publish only the summary of possible combinations.
Please note, these are not "odds," each game is treated as a 50-50 split. It is just a tally of possible results.