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