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