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