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