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