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