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