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

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

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

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

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