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