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

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

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

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

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