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