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

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

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

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

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