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

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

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

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

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