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