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

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

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

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

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