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