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

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

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

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

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