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