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