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

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

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

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

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