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

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

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

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

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