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

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

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

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

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