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

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

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

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

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