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

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

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

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

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