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

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

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

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

(0)(1)(2)(3 9 5)(4)(6 14 7)(8 12 10)(11 16 13)(15)(17)(18)(19)(20)