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

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

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

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

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