I'd be more in favor of 69 games:
Play everyone in your division 3 times = 21 games
Play everyone in the opposite division 2 times = 16 games
Play everyone in the other conference twice = 32 games
Play everyone in your division 3 times = 21 games
Play everyone in the opposite division 2 times = 16 games
Play everyone in the other conference twice = 32 games
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