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