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