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

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

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

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

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