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

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

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

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

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