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