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