(0 19 17 15 9 5 2)(1 7 3)(4 11 8)(6 14 13)(10 16 12)(18 21 20)
ALLOWS (11/8)-SEQUENCE
1: (0 2 5)
(0 2 19 17 15 9 5)(1 7 3)(4 11 8)(6 14 13)(10 16 12)(18 21 20)
2: (1 7 3)
(0 2 19 17 15 9 5)(1)(3)(4 11 8)(6 14 13)(7)(10 16 12)(18 21 20)
3: (0 9 5)
(0)(1)(2 19 17 15 9)(3)(4 11 8)(5)(6 14 13)(7)(10 16 12)(18 21 20)
4: (4 11 8)
(0)(1)(2 19 17 15 9)(3)(4)(5)(6 14 13)(7)(8)(10 16 12)(11)(18 21 20)