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

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

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

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

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