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