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

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

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

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

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