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