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