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

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

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

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

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