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

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

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

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

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