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