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