40 team, 152 game schedule
2 leagues, any configuration of 20 teams
8 games per league opponent
no interleague games
This schedule is simply a "doubling-up" of
this 20 team schedule.
League configuration is essentially irrelevant since all 19 other teams in the league are played same number of games. Only deviation from balance is that 3 teams are played 3H/5A, and 3 teams are played 5H/3A.
See top of file for more details.