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