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