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

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

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

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

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