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