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