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

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

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

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

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