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