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