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