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