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