Agar 10 ta jamoa bo'lsa, nechta XIL jadvallar mavjud?

47. Turnirda "kubok boshiga" n jamoalar qatnashadi va yutqazilganlar ketadi, n – 1 o'yinlardan keyin g'olib qoladi. Turnir jadvalini ramz sifatida ((a, (b, c)), d) [b o'ynaydi c bilan, g'oliblar a bilan, g'oliblar d bilan].
Agar 10 ta jamoa bo'lsa, nechta xil jadvallar mavjud?
Agar jamoalar 2 bo'lsa – faqat (a, b), soni = 1.
Agar jamoalar 3 bo'lsa – faqat ((a, b), c) yoki ((a, c), b), yoki((b, c), a), soni = 3.
Agar 4-guruh: (((a, b), c), d) (((a, c), b), d) (((a, d), b), c) (((b, c) , a), d) (((((b, d), a), c) (((((c, d), a), b) ((((a, b), d), c) (((a, c), d), b) (((((a, d), c), b) (((((b, c), d), a) ((((b, d), c), a) (((( c, d), b), a) ((a, b), (c, d)) ((a, c), (b, d)) ((a, d), (b, c)).