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

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

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

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

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