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

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

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

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

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