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

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

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

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

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