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