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