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