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

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

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

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

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