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

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

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

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

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