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