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

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

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

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

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