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