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

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

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

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

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