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

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

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

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

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