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