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