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

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

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

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

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