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