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

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

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

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

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