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