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