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

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

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

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

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