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