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

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

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

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

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