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