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