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

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

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

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

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