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

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

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

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

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