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

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

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

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

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