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