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