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

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

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

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

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