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

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

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

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

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