(0 18 2)(1 6 4)(3 20 19 17 13)(5 9 7)(8 21 16 12 10)(11 15 14)
ALLOWS (11/8)-SEQUENCE
1: (0 11 15)
(0 14 11 18 2)(1 6 4)(3 20 19 17 13)(5 9 7)(8 21 16 12 10)(15)
2: (3 20 13)
(0 14 11 18 2)(1 6 4)(3)(5 9 7)(8 21 16 12 10)(13 19 17)(15)(20)
3: (10 16 12)
(0 14 11 18 2)(1 6 4)(3)(5 9 7)(8 21 16)(10)(12)(13 19 17)(15)(20)
4: (2 11 18)
(0 14 11)(1 6 4)(2)(3)(5 9 7)(8 21 16)(10)(12)(13 19 17)(15)(18)(20)