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

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

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

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

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