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