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