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