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