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

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

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

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

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