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