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