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