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

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

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

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

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