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

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

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

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

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