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