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

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

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

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

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