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