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