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

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

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

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

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