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