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

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

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

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

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