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