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

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

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

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

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