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

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

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

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

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