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