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