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