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

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

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

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

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