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