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