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

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

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

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

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