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