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

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

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

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

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