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

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

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

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

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