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

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

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

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

(0)(1)(2)(3)(4)(5 8 7)(6 12 10)(9)(11 15 13)(14 19 16)(17)(18)(20)