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