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

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

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

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

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