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