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