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