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

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

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

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

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