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