(0 20 15)(1 21 10 6 3)(2 5 4)(7 13 11)(8 18 9 19 17)(12 16 14)
ALLOWS (11/8)-SEQUENCE
1: (0 8 15)
(0)(1 21 10 6 3)(2 5 4)(7 13 11)(8 20 15 18 9 19 17)(12 16 14)
2: (6 21 10)
(0)(1 21 3)(2 5 4)(6)(7 13 11)(8 20 15 18 9 19 17)(10)(12 16 14)
3: (9 15 18)
(0)(1 21 3)(2 5 4)(6)(7 13 11)(8 20 15 19 17)(9)(10)(12 16 14)(18)
4: (15 19 20)
(0)(1 21 3)(2 5 4)(6)(7 13 11)(8 20 17)(9)(10)(12 16 14)(15)(18)(19)