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

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

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

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

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