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

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

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

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

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