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

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

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

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

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