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

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

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

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

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