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

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

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

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

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