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