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