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

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

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

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

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