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

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

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

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

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