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

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

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

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

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