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