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