2**n teams are not mandatory
... ... ...
copyright (c) 1998 William C. Corwin; Corwin???? ◦ gmail ∙ com
including permutations derived from this solution
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Most people who should know think that byes are required for robin schedules that do not have the number of teams equal to a power of 2. However, there are examples here for all even numbers of teams including twice an odd number.
1 2 3 4 5 6 7 8 9 A B 2 3 5 4 6 7 8 9 A B C 1 6 3 5 4 8 9 A B C 7 4 1 2 6 5 9 A B C 7 8 3 5 6 1 2 A B C 7 8 9 6 4 1 2 3 B C 7 8 9 A 5 2 4 3 1 C 7 8 9 A B 8 9 B A C 1 6 5 4 3 2 7 C 9 B A 2 1 6 5 4 3 A 7 8 C B 3 2 1 6 5 4 9 B C 7 8 4 3 2 1 6 5 C A 7 8 9 5 4 3 2 1 6 B 8 A 9 7 6 5 4 3 2 1

...calculators... ...base 12...
patterns for 6 thru 38 teams ...For 6 teams... ...For 10 teams... ...For 12 teams... ...For 14 teams... ...For 18 teams... ...For 20 teams...
...For 22 teams... ...For 24 teams... ...For 26 teams... ...For 28 teams... ...For 30 teams... ...For 32 teams...
...For 34 teams... ...For 38 teams... ...For 40 teams... ...For 42 teams... ...For 44 teams... ...For 50 teams...
The Schedule for multiples of 4 can easlily be constructed using
the schedule for a multiple of 2 twice with a systematic extension.
index of files in this directory ; description of files in this directory
...other calculators...
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(C)1999 Wm.C.Corwin Corwin???? ◦ gmail ∙ com
unsolved prime number problems . differential equations . computational algebra . math ematics