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

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

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

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

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