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A064422
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Football league numbers: the possible point series for a league of n teams playing each other twice where for each match 3 points are awarded to the winning team and 1 to each in the case of a tie.
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3
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OFFSET
| 1,2
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COMMENTS
| This series reflects the now common 3 point rule of international football where the sum of total points awarded depends on the outcome of each match. The classical 2 point rule is equivalent of that for chess tournaments (A047730).
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EXAMPLE
| For 2 teams there are 4 possible outcomes: [0, 6], [1, 4], [2, 2] and [3, 3], so a(2) = 4.
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CROSSREFS
| Cp. A047730, A064626, A007747.
Sequence in context: A005431 A153849 A010792 * A140701 A087047 A053514
Adjacent sequences: A064419 A064420 A064421 * A064423 A064424 A064425
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KEYWORD
| nonn,more
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AUTHOR
| Thomas Schulze (jazariel(AT)tiscalenet.it), Sep 30 2001
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