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