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