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