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