(0 20 17 15 12 4 2)(1 7 5)(3 11 10)(6 13 8)(9 16 14)(18 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 6 13)
(0 8 6 20 17 15 12 4 2)(1 7 5)(3 11 10)(9 16 14)(13)(18 21 19)
2: (4 20 12)
(0 8 6 20 2)(1 7 5)(3 11 10)(4)(9 16 14)(12 17 15)(13)(18 21 19)
3: (1 7 5)
(0 8 6 20 2)(1)(3 11 10)(4)(5)(7)(9 16 14)(12 17 15)(13)(18 21 19)
4: (0 8 2)
(0)(1)(2 6 20)(3 11 10)(4)(5)(7)(8)(9 16 14)(12 17 15)(13)(18 21 19)