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

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

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

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

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