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