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