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

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

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

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

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