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