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

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

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

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

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