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