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

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

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

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

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