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

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

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

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

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