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

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

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

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

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