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