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

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

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

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

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