(0 8 6 4 2)(1 9 7 5 3)
ALLOWS (11/8)-SEQUENCE
1: (0 2 6)
(0 4 2 8 6)(1 9 7 5 3)
2: (1 9 3)
(0 4 2 8 6)(1)(3 7 5)(9)
3: (2 8 4)
(0 4 6)(1)(2)(3 7 5)(8)(9)
4: (3 7 5)
(0 4 6)(1)(2)(3)(5)(7)(8)(9)