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