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