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

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

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

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

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