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

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

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

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

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