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

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

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

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

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