I tried all 2-game series and doing some "clustering" of the interdivision series. Every team has an offday every week, and the homestands/roadtrips can go a little long.
Code:
#
# 64 team schedule, 152 games
# Designed for the following configuration:
# 2 subleagues, each with 4 divisions of 8 teams
#
#
# 8 games against 7 other teams in division (4H/4A)
# 4 games against 24 teams in subleague (2H/2A)
# no interleague games
#
# All games in 2-games series
# Three series per week (except week of All-Star Game)
# One series Mon-Tue or Tue-Wed, one Thu-Fri, and one Sat-Sun
# Every team has offday each week either Mon or Wed
#
# Interdivision games played in 2-3 series clusters
# Each cluster is either home or away against a teams of a division
#
# Homestands and roadtrips may be as long as 16 games
#
# All teams play 13 weekend series at home
#
# All game times set at 7:05pm
#
# Season begins first Monday of April
# Season ends late September/early October
# Season spans 182 days
#
# All-Star Game in early July
# Break is Mon-Fri and All-Star Game is on that Wed
#
# Built 2019-04-20
#