(0 19 17 16 13 7 2)(1 6 4)(3 11 9)(5 14 8)(10 15 12)(18 21 20)
ALLOWS (11/8)-SEQUENCE
1: (0 3 11)
(0 9 3 19 17 16 13 7 2)(1 6 4)(5 14 8)(10 15 12)(11)(18 21 20)
2: (2 3 7)
(0 9 3)(1 6 4)(2)(5 14 8)(7 19 17 16 13)(10 15 12)(11)(18 21 20)
3: (5 14 8)
(0 9 3)(1 6 4)(2)(5)(7 19 17 16 13)(8)(10 15 12)(11)(14)(18 21 20)
4: (10 15 12)
(0 9 3)(1 6 4)(2)(5)(7 19 17 16 13)(8)(10)(11)(12)(14)(15)(18 21 20)