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