(0 20 2)(1 19 5)(3 18 16)(4 10 8)(6 13 7)(9 14 11)(12 17 15)
ALLOWS (11/8)-SEQUENCE
1: (2 17 20)

(0 20 15 12 17)(1 19 5)(2)(3 18 16)(4 10 8)(6 13 7)(9 14 11)
2: (1 19 5)

(0 20 15 12 17)(1)(2)(3 18 16)(4 10 8)(5)(6 13 7)(9 14 11)(19)
3: (3 18 16)

(0 20 15 12 17)(1)(2)(3)(4 10 8)(5)(6 13 7)(9 14 11)(16)(18)(19)
4: (0 12 17)

(0)(1)(2)(3)(4 10 8)(5)(6 13 7)(9 14 11)(12 20 15)(16)(17)(18)(19)