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