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

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

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

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

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