%I #10 Mar 31 2012 10:33:14

%S 1,2,25,408,6272,91640,1316363

%N Football league numbers with distinct point totals 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.

%e For n=2 the possible outcomes are [0,6] and [1,4], so a(2)=2. The other possible outcomes [2,2] and [3,3] do not have distinct point totals.

%Y A064422 allows teams to have the same point total.

%Y Cf. A064626, A152789

%K nonn

%O 1,2

%A _Lorand Lucz_, Mar 09 2012