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