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