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