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