(0 19 17)(1 20 3)(2 6 4)(5 10 7)(8 18 15 13 12)(9 21 16 14 11)
ALLOWS (11/8)-SEQUENCE
1: (0 10 17)
(0)(1 20 3)(2 6 4)(5 10 19 17 7)(8 18 15 13 12)(9 21 16 14 11)
2: (8 18 15)
(0)(1 20 3)(2 6 4)(5 10 19 17 7)(8 13 12)(9 21 16 14 11)(15)(18)
3: (9 21 11)
(0)(1 20 3)(2 6 4)(5 10 19 17 7)(8 13 12)(9)(11 16 14)(15)(18)(21)
4: (7 19 17)
(0)(1 20 3)(2 6 4)(5 10 19)(7)(8 13 12)(9)(11 16 14)(15)(17)(18)(21)