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

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

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

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

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