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