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