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

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

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

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

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