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