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

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

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

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

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