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

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

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

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

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