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