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