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