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

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

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

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

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