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