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