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

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

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

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

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