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