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

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

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

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

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