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