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