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

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

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

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

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