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