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

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

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

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

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