make a knock out fixture for 13 teams keeping in mind the seeded teams

Total no. Of teams =13 Toatl no. Of byes = 2^n -13 = 16-13 =3 (n=4) Total no. Of seedings =4 No. Of byes in upper half = 1 No. Of byes in lower half = 2 Total no. Of rounds =4 Total no. Of matches = 12 Total no. Of teams in upper half = 7 Total no. Of teams in lower half = 6