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