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