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