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