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