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