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

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

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

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

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