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

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

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

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

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