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