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

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

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

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

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