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