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