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