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