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