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

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

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

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

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