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